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Class 11 Biology Structural Organisation in Animals 1 Mark Questions

1 Mark Questions for Class 11 Biology Structural Organisation in Animals. 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 Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. CBSE often tests a concept by asking a daily-life example from the same chapter
  • B. Frog morphology as in remaining text
  • C. Epithelial types
  • D. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology
Answer

C. Epithelial types

Explanation

Epithelial types. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q2MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Organ and organ system
  • B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
  • C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
  • D. Connective tissues
Answer

D. Connective tissues

Explanation

Connective tissues. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q3MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Frog morphology as in remaining text
  • B. Every chapter ends with keywords or a summary that is useful for one-mark answers
  • C. Follow your edition — morphology of earthworm/cockroach may be reduced
  • D. Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start
Answer

A. Frog morphology as in remaining text

Explanation

Frog morphology as in remaining text. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q4MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Use the terms used in the NCERT book; do not replace them with unofficial names
  • B. Organ and organ system
  • C. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology
  • D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer

B. Organ and organ system

Explanation

Organ and organ system. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q5MCQ1 markModerateRevision pick

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Follow your edition — morphology of earthworm/cockroach may be reduced
  • B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
  • C. Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals
  • D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer

A. Follow your edition — morphology of earthworm/cockroach may be reduced

Explanation

Follow your edition — morphology of earthworm/cockroach may be reduced. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q6MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology
  • B. Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start
  • C. Organ and organ system
  • D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer

A. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology

Explanation

Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q7MCQ1 markEasy

Choose the correct statement related to Textbook first in the chapter Structural Organisation in Animals.

  • A. The textbook says the opposite of this statement
  • B. CBSE often tests a concept by asking a daily-life example from the same chapter
  • C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
  • D. Use the terms used in the NCERT book; do not replace them with unofficial names
Answer

C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions

Explanation

Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q8MCQ1 markEasy

Choose the correct statement related to Keywords in the chapter Structural Organisation in Animals.

  • A. This happens only in a laboratory and never in daily life
  • B. Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals
  • C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
  • D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer

D. Every chapter ends with keywords or a summary that is useful for one-mark answers

Explanation

Every chapter ends with keywords or a summary that is useful for one-mark answers. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q9MCQ1 markEasyRevision pick

Choose the correct statement related to Examples in the chapter Structural Organisation in Animals.

  • A. This idea is not part of the NCERT chapter
  • B. Epithelial types
  • C. CBSE often tests a concept by asking a daily-life example from the same chapter
  • D. Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start
Answer

C. CBSE often tests a concept by asking a daily-life example from the same chapter

Explanation

CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q10MCQ1 markModerate

Choose the correct statement related to Diagrams in the chapter Structural Organisation in Animals.

  • A. Connective tissues
  • B. Use the terms used in the NCERT book; do not replace them with unofficial names
  • C. The textbook says the opposite of this statement
  • D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer

D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures

Explanation

If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q11MCQ1 markEasy

Choose the correct statement related to Revision in the chapter Structural Organisation in Animals.

  • A. Frog morphology as in remaining text
  • B. Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals
  • C. Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start
  • D. This happens only in a laboratory and never in daily life
Answer

C. Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start

Explanation

Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q12MCQ1 markEasy

Choose the correct statement related to Accuracy in the chapter Structural Organisation in Animals.

  • A. Organ and organ system
  • B. This idea is not part of the NCERT chapter
  • C. Use the terms used in the NCERT book; do not replace them with unofficial names
  • D. Epithelial types
Answer

C. Use the terms used in the NCERT book; do not replace them with unofficial names

Explanation

Use the terms used in the NCERT book; do not replace them with unofficial names. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q13MCQ1 markEasyRevision pick

Choose the correct statement related to Practice in the chapter Structural Organisation in Animals.

  • A. Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals
  • B. The textbook says the opposite of this statement
  • C. Connective tissues
  • D. Follow your edition — morphology of earthworm/cockroach may be reduced
Answer

A. Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals

Explanation

Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q14MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Epithelial types
  • B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
  • C. Organ and organ system
  • D. This happens only in a laboratory and never in daily life
Answer

A. Epithelial types

Explanation

Epithelial types. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q15MCQ1 markModerate

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Connective tissues
  • B. Epithelial types
  • C. Every chapter ends with keywords or a summary that is useful for one-mark answers
  • D. Follow your edition — morphology of earthworm/cockroach may be reduced
Answer

A. Connective tissues

Explanation

Connective tissues. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q16MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Connective tissues
  • B. CBSE often tests a concept by asking a daily-life example from the same chapter
  • C. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology
  • D. Frog morphology as in remaining text
Answer

D. Frog morphology as in remaining text

Explanation

Frog morphology as in remaining text. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q17MCQ1 markEasyRevision pick

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Organ and organ system
  • B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
  • C. Frog morphology as in remaining text
  • D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer

A. Organ and organ system

Explanation

Organ and organ system. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q18MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Follow your edition — morphology of earthworm/cockroach may be reduced
  • B. Every chapter ends with keywords or a summary that is useful for one-mark answers
  • C. Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start
  • D. Organ and organ system
Answer

A. Follow your edition — morphology of earthworm/cockroach may be reduced

Explanation

Follow your edition — morphology of earthworm/cockroach may be reduced. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q19MCQ1 markEasy

Choose the correct statement related to Structural Organisation in Animals in the chapter Structural Organisation in Animals.

  • A. Connective tissues
  • B. This topic is only for college
  • C. Follow your edition — morphology of earthworm/cockroach may be reduced
  • D. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology
Answer

D. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology

Explanation

Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q20MCQ1 markModerate

Choose the correct statement related to Textbook first in the chapter Structural Organisation in Animals.

  • A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
  • B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
  • C. Structural Organisation in Animals is an NCERT chapter taught in CBSE Class 11 Biology
  • D. Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals
Answer

A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions

Explanation

Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q211 Mark1 markEasy

Define or state: Keywords.

Answer

Every chapter ends with keywords or a summary that is useful for one-mark answers.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q221 Mark1 markEasy

Define or state: Examples.

Answer

CBSE often tests a concept by asking a daily-life example from the same chapter.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q231 Mark1 markEasy

Define or state: Diagrams.

Answer

If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q241 Mark1 markEasy

Define or state: Revision.

Answer

Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q251 Mark1 markModerate

Define or state: Accuracy.

Answer

Use the terms used in the NCERT book; do not replace them with unofficial names.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q261 Mark1 markEasy

Define or state: Practice.

Answer

Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q271 Mark1 markEasy

Define or state: Structural Organisation in Animals.

Answer

Epithelial types.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q281 Mark1 markEasy

Define or state: Structural Organisation in Animals.

Answer

Connective tissues.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q291 Mark1 markEasy

Define or state: Structural Organisation in Animals.

Answer

Frog morphology as in remaining text.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q301 Mark1 markModerate

Define or state: Structural Organisation in Animals.

Answer

Organ and organ system.

Explanation

A one-mark answer should use the textbook term and one clear fact — not a long paragraph.

Meta

Class: Class 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q61Assertion and Reason1 markModerate

Assertion (A): CBSE often tests a concept by asking a daily-life example from the same chapter.
Reason (R): Examples is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q62Assertion and Reason1 markModerate

Assertion (A): If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.
Reason (R): Diagrams is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q63Assertion and Reason1 markModerate

Assertion (A): Write three points from Structural Organisation in Animals in your own words; that is enough for a short-answer start.
Reason (R): Revision is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q64Assertion and Reason1 markDifficult

Assertion (A): Use the terms used in the NCERT book; do not replace them with unofficial names.
Reason (R): Accuracy is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q65Assertion and Reason1 markModerate

Assertion (A): Mix MCQs with short answers so you remember both facts and explanations from Structural Organisation in Animals.
Reason (R): Practice is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q66Assertion and Reason1 markModerate

Assertion (A): Epithelial types.
Reason (R): Structural Organisation in Animals is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q67Assertion and Reason1 markModerate

Assertion (A): Connective tissues.
Reason (R): Structural Organisation in Animals is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Q68Assertion and Reason1 markDifficult

Assertion (A): Frog morphology as in remaining text.
Reason (R): Structural Organisation in Animals is a key idea in the chapter Structural Organisation in Animals.

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 11 · Subject: Biology · Chapter: Structural Organisation in Animals · 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-11/, then subject and chapter slugs.

Why is this a separate URL?

So students searching for “1 Mark 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.

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