Class 10 Science Life Processes Sample Paper Style Practice
Sample Paper Style Practice for Class 10 Science Life Processes. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Photosynthesis in the chapter Life Processes.
A. The nephron is the structural and functional unit of the kidney
B. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
C. Autotrophic nutrition: photosynthesis
D. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Answer
B. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
Explanation
Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Aerobic respiration in the chapter Life Processes.
A. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
B. Aerobic respiration releases more energy than anaerobic
C. Xylem transports water and minerals from roots to other parts of the plant
D. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
Answer
D. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
Explanation
Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Human heart in the chapter Life Processes.
A. Peristalsis is the wave-like movement of the alimentary canal that pushes food
B. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
C. Phloem transports food from leaves to other parts of the plant
D. Human heart: four chambers
Answer
B. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Explanation
The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Xylem in the chapter Life Processes.
A. Xylem transports water and minerals from roots to other parts of the plant
B. The nephron is the structural and functional unit of the kidney
C. Xylem water; phloem food
D. Autotrophic nutrition: photosynthesis
Answer
A. Xylem transports water and minerals from roots to other parts of the plant
Explanation
Xylem transports water and minerals from roots to other parts of the plant. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Phloem in the chapter Life Processes.
A. Phloem transports food from leaves to other parts of the plant
B. Nephron is the unit of kidney
C. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
D. Aerobic respiration releases more energy than anaerobic
Answer
A. Phloem transports food from leaves to other parts of the plant
Explanation
Phloem transports food from leaves to other parts of the plant. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q6MCQ1 markEasy
Choose the correct statement related to Nephron in the chapter Life Processes.
A. Peristalsis is the wave-like movement of the alimentary canal that pushes food
B. The nephron is the structural and functional unit of the kidney
C. Human heart: four chambers
D. This idea is not part of the NCERT chapter
Answer
B. The nephron is the structural and functional unit of the kidney
Explanation
The nephron is the structural and functional unit of the kidney. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q7MCQ1 markEasy
Choose the correct statement related to Alveoli in the chapter Life Processes.
A. The textbook says the opposite of this statement
B. Xylem water; phloem food
C. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
D. Autotrophic nutrition: photosynthesis
Answer
C. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
Explanation
Alveoli provide a large surface for exchange of oxygen and carbon dioxide. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q8MCQ1 markEasy
Choose the correct statement related to Peristalsis in the chapter Life Processes.
A. This happens only in a laboratory and never in daily life
B. Aerobic respiration releases more energy than anaerobic
C. Nephron is the unit of kidney
D. Peristalsis is the wave-like movement of the alimentary canal that pushes food
Answer
D. Peristalsis is the wave-like movement of the alimentary canal that pushes food
Explanation
Peristalsis is the wave-like movement of the alimentary canal that pushes food. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Autotrophic nutrition in the chapter Life Processes.
A. Autotrophic nutrition: photosynthesis
B. This idea is not part of the NCERT chapter
C. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
D. Human heart: four chambers
Answer
A. Autotrophic nutrition: photosynthesis
Explanation
Autotrophic nutrition: photosynthesis. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q10MCQ1 markModerate
Choose the correct statement related to Life Processes in the chapter Life Processes.
A. The textbook says the opposite of this statement
B. Aerobic respiration releases more energy than anaerobic
C. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
D. Xylem water; phloem food
Answer
B. Aerobic respiration releases more energy than anaerobic
Explanation
Aerobic respiration releases more energy than anaerobic. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q11MCQ1 markEasy
Choose the correct statement related to Human heart in the chapter Life Processes.
A. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
B. Human heart: four chambers
C. This happens only in a laboratory and never in daily life
D. Nephron is the unit of kidney
Answer
B. Human heart: four chambers
Explanation
Human heart: four chambers. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q12MCQ1 markEasy
Choose the correct statement related to Life Processes in the chapter Life Processes.
A. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
B. This idea is not part of the NCERT chapter
C. Xylem water; phloem food
D. Xylem transports water and minerals from roots to other parts of the plant
Answer
C. Xylem water; phloem food
Explanation
Xylem water; phloem food. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Life Processes in the chapter Life Processes.
A. Nephron is the unit of kidney
B. The textbook says the opposite of this statement
C. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
D. Phloem transports food from leaves to other parts of the plant
Answer
A. Nephron is the unit of kidney
Explanation
Nephron is the unit of kidney. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q14MCQ1 markEasy
Choose the correct statement related to Photosynthesis in the chapter Life Processes.
A. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
B. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
C. Xylem transports water and minerals from roots to other parts of the plant
D. This happens only in a laboratory and never in daily life
Answer
B. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
Explanation
Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q15MCQ1 markModerate
Choose the correct statement related to Aerobic respiration in the chapter Life Processes.
A. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
B. Peristalsis is the wave-like movement of the alimentary canal that pushes food
C. Phloem transports food from leaves to other parts of the plant
D. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
Answer
D. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
Explanation
Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q16MCQ1 markEasy
Choose the correct statement related to Human heart in the chapter Life Processes.
A. The nephron is the structural and functional unit of the kidney
B. Autotrophic nutrition: photosynthesis
C. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
D. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Answer
D. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Explanation
The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Xylem in the chapter Life Processes.
A. Xylem transports water and minerals from roots to other parts of the plant
B. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
C. Aerobic respiration releases more energy than anaerobic
D. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Answer
A. Xylem transports water and minerals from roots to other parts of the plant
Explanation
Xylem transports water and minerals from roots to other parts of the plant. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q18MCQ1 markEasy
Choose the correct statement related to Phloem in the chapter Life Processes.
A. Phloem transports food from leaves to other parts of the plant
B. Peristalsis is the wave-like movement of the alimentary canal that pushes food
C. Xylem transports water and minerals from roots to other parts of the plant
D. Human heart: four chambers
Answer
A. Phloem transports food from leaves to other parts of the plant
Explanation
Phloem transports food from leaves to other parts of the plant. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q19MCQ1 markEasy
Choose the correct statement related to Nephron in the chapter Life Processes.
A. Phloem transports food from leaves to other parts of the plant
B. Autotrophic nutrition: photosynthesis
C. Xylem water; phloem food
D. The nephron is the structural and functional unit of the kidney
Answer
D. The nephron is the structural and functional unit of the kidney
Explanation
The nephron is the structural and functional unit of the kidney. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q20MCQ1 markModerate
Choose the correct statement related to Alveoli in the chapter Life Processes.
A. The nephron is the structural and functional unit of the kidney
B. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
C. Nephron is the unit of kidney
D. Aerobic respiration releases more energy than anaerobic
Answer
B. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
Explanation
Alveoli provide a large surface for exchange of oxygen and carbon dioxide. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q413 Mark3 marksModerateRevision pick
Explain Aerobic respiration in about three points, with one example.
Answer
Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q423 Mark3 marksModerate
Explain Human heart in about three points, with one example.
Answer
The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q433 Mark3 marksModerate
Explain Xylem in about three points, with one example.
Answer
Xylem transports water and minerals from roots to other parts of the plant. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q443 Mark3 marksDifficult
Explain Phloem in about three points, with one example.
Answer
Phloem transports food from leaves to other parts of the plant. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q453 Mark3 marksModerateRevision pick
Explain Nephron in about three points, with one example.
Answer
The nephron is the structural and functional unit of the kidney. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q463 Mark3 marksModerate
Explain Alveoli in about three points, with one example.
Answer
Alveoli provide a large surface for exchange of oxygen and carbon dioxide. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q473 Mark3 marksModerate
Explain Peristalsis in about three points, with one example.
Answer
Peristalsis is the wave-like movement of the alimentary canal that pushes food. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q483 Mark3 marksDifficult
Explain Autotrophic nutrition in about three points, with one example.
Answer
Autotrophic nutrition: photosynthesis. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q555 Mark5 marksModerate
Write a long answer on Human heart. Include definition, explanation and one application.
Answer
Human heart — The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q565 Mark5 marksModerate
Write a long answer on Xylem. Include definition, explanation and one application.
Answer
Xylem — Xylem transports water and minerals from roots to other parts of the plant. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q575 Mark5 marksDifficultRevision pick
Write a long answer on Phloem. Include definition, explanation and one application.
Answer
Phloem — Phloem transports food from leaves to other parts of the plant. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q585 Mark5 marksModerate
Write a long answer on Nephron. Include definition, explanation and one application.
Answer
Nephron — The nephron is the structural and functional unit of the kidney. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q595 Mark5 marksModerate
Write a long answer on Alveoli. Include definition, explanation and one application.
Answer
Alveoli — Alveoli provide a large surface for exchange of oxygen and carbon dioxide. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q605 Mark5 marksDifficult
Write a long answer on Peristalsis. Include definition, explanation and one application.
Answer
Peristalsis — Peristalsis is the wave-like movement of the alimentary canal that pushes food. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q61Assertion and Reason1 markModerate
Assertion (A): Autotrophic nutrition: photosynthesis.
Reason (R): Autotrophic nutrition is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q62Assertion and Reason1 markModerate
Assertion (A): Aerobic respiration releases more energy than anaerobic.
Reason (R): Life Processes is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q63Assertion and Reason1 markModerate
Assertion (A): Human heart: four chambers.
Reason (R): Human heart is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q64Assertion and Reason1 markDifficult
Assertion (A): Xylem water; phloem food.
Reason (R): Life Processes is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q65Assertion and Reason1 markModerate
Assertion (A): Nephron is the unit of kidney.
Reason (R): Life Processes is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q66Assertion and Reason1 markModerate
Assertion (A): Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen.
Reason (R): Photosynthesis is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q67Assertion and Reason1 markModerate
Assertion (A): Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration.
Reason (R): Aerobic respiration is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q68Assertion and Reason1 markDifficult
Assertion (A): The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart.
Reason (R): Human heart is a key idea in the chapter Life Processes.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q69Case Based4 marksModerateRevision pick
A student is revising Life Processes and notes: “Xylem transports water and minerals from roots to other parts of the plant.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Xylem.
(ii) Xylem transports water and minerals from roots to other parts of the plant.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q70Case Based4 marksModerate
A student is revising Life Processes and notes: “Phloem transports food from leaves to other parts of the plant.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Phloem.
(ii) Phloem transports food from leaves to other parts of the plant.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q71Case Based4 marksModerate
A student is revising Life Processes and notes: “The nephron is the structural and functional unit of the kidney.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Nephron.
(ii) The nephron is the structural and functional unit of the kidney.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q72Case Based4 marksDifficult
A student is revising Life Processes and notes: “Alveoli provide a large surface for exchange of oxygen and carbon dioxide.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Alveoli.
(ii) Alveoli provide a large surface for exchange of oxygen and carbon dioxide.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q73Case Based4 marksModerateRevision pick
A student is revising Life Processes and notes: “Peristalsis is the wave-like movement of the alimentary canal that pushes food.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Peristalsis.
(ii) Peristalsis is the wave-like movement of the alimentary canal that pushes food.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q74Case Based4 marksModerate
A student is revising Life Processes and notes: “Autotrophic nutrition: photosynthesis.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Autotrophic nutrition.
(ii) Autotrophic nutrition: photosynthesis.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q75Case Based4 marksModerate
A student is revising Life Processes and notes: “Aerobic respiration releases more energy than anaerobic.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Life Processes.
(ii) Aerobic respiration releases more energy than anaerobic.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q76Case Based4 marksDifficult
A student is revising Life Processes and notes: “Human heart: four chambers.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Human heart.
(ii) Human heart: four chambers.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q77Competency Based3 marksModerateRevision pick
Competency practice: A classmate can recall the heading Life Processes but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Xylem water; phloem food. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q78Competency Based3 marksDifficult
Competency practice: A classmate can recall the heading Life Processes but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Nephron is the unit of kidney. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q79Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Photosynthesis but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q80Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Aerobic respiration but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q81Competency Based3 marksDifficultRevision pick
Competency practice: A classmate can recall the heading Human heart but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q82Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Xylem but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Xylem transports water and minerals from roots to other parts of the plant. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q83Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Phloem but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Phloem transports food from leaves to other parts of the plant. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q84Competency Based3 marksDifficult
Competency practice: A classmate can recall the heading Nephron but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — The nephron is the structural and functional unit of the kidney. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
How should I use the 100 questions?
Try the question first, then tap Show answer. Mix MCQs with long answers. Revise formulas and diagrams from the textbook alongside this set.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-10/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Sample Paper Style Practice” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
