Class 10 Science Life Processes Most Important Questions
Most Important Questions 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.
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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.
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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).
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).
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).
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).
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).
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).
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).
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).
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).
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).
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).
Q93HOTS3 marksDifficultRevision pick
HOTS: If someone ignored the idea “Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration”, what mistake could they make while solving a question from Life Processes?
Answer
They would use the wrong term or the reverse relation. Remember: Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. Always check the NCERT definition before jumping to a formula or a long explanation.
Explanation
HOTS items ask you to predict an error. That is still chapter revision — not a claim that this exact wording will appear in the board exam.
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 “Most Important Questions” 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.
