| Assertion (A): | Cells vary in their shape, size and functions based on the presence or absence of a membrane bound nucleus and other organelles. |
| Reason (R): | A typical eukaryotic cell consists of a cell membrane, nucleus and cytoplasm. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false but (R) is true. |
| Assertion (A): | Cell is the fundamental structural and functional unit of all living organisms. |
| Reason (R): | Because unicellular organisms can show independent existence and perform all metabolic activities. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | True chromatin is absent in prokaryotes. |
| Reason (R): | Mitosis does not occur in prokaryotes. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | Ribosomes are known as RNP particles. |
| Reason (R): | Ribosomes are made of rRNA and proteins. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | Lysosomes are called ‘Suicidal bags’. |
| Reason (R): | Lysosomes are called ‘Suicidal bags’. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | Basal bodies are formed from centrioles. |
| Reason (R): | Both basal bodies and centrioles have 9+2 structural organization. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | Mitochondria is known as power house of cell. |
| Reason (R): | ATP production takes place here. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
| I: | independent existence |
| II: | performing the essential functions of life |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
| I: | The outer nuclear membrane usually remains continuous with the endoplasmic reticulum but does not bear ribosomes on it. |
| II: | Nucleolus is a single membrane-bound structure. |
| III: | Chromatin contains DNA and some acidic proteins called histones, but does not contain non-histone proteins and RNA. |
| IV: | Every chromosome essentially has a primary constriction or the centromere on the sides of which disc-shaped structures called kinetochores are present. |