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Q. No.Which one of the following is the site for active ribosomal RNA synthesis?
| 1. | Nucleolus | 2. | Chromatin |
| 3. | Centrosome | 4. | Kinetochore |
Subtopic: Nucleus |
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Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cell are___________.
| 1. | Centrosomes |
| 2. | Ribosomes |
| 3. | Lysosomes |
| 4. | Mitochondria |
Subtopic: Ribosome and Inclusion Bodies |
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Choose the correct statements regarding cell organelles and their inclusions.
Choose the correct answer from the options given below :
1. C, D and E only
2. A and B only
3. A, B and C only
4. B, C and D only
| A. | The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria. |
| B. | Rough endoplasmic reticulum bears ribosomes on its surface. |
| C. | Both mitochondria and plastids have circular DNA. |
| D. | A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton. |
| E. | Mitochondrion is a single membrane-bound structure. |
Choose the correct answer from the options given below :
1. C, D and E only
2. A and B only
3. A, B and C only
4. B, C and D only
Subtopic: Cell Organisation |
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Select the correct statements regarding cell membrane in eukaryotic cell.
Choose the correct answer from the options given below:
1. A, C and E only
2. B, C and E only
3. C, D and E only
4. A, B and D only
| A. | Membrane of human RBCs has approximately 52% protein. |
| B. | Major phospholipids are arranged in a bilayer. |
| C. | Extensions of the plasma membrane into the cell form mesosomes. |
| D. | Tails towards the inner part of lipids are hydrophobic and thus protected from aqueous medium. |
| E. | Glycocalyx is present on the outer surface of the plasma membrane. |
Choose the correct answer from the options given below:
1. A, C and E only
2. B, C and E only
3. C, D and E only
4. A, B and D only
Subtopic: Cell Membrane |
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below :
| Assertion (A): | The primary function of the Golgi apparatus is to package the materials made by the endoplasmic reticulum and deliver it to intracellular targets and outside the cell. |
| Reason (R): | Vesicles containing materials made by the endoplasmic reticulum fuse with the cis face of the Golgi apparatus, and they are modified and released from the trans face of the Golgi apparatus. |
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
Subtopic: Golgi Apparatus |
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Which one of the following statements refers to Reductionist Biology?
| 1. | Chemical approach to study and understand living organisms |
| 2. | Behavioural approach to study and understand living organisms |
| 3. | Physico-chemical approach to study and understand living organisms |
| 4. | Physiological approach to study and understand living organisms |
Subtopic: Introduction to Botany |
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From the statements given below, choose the correct option:
| A. | The eukaryotic ribosomes are 80S and prokaryotic ribosomes are 70S. |
| B. | Each ribosome has two subunits. |
| C. | The two sub-units of 80S ribosomes are 60S and 40S, while those of 70S are 50S and 30S |
| D. | The two subunits of 80S ribosomes are 60S and 20S, and those of 70S are 50S and 20S |
| E. | The two subunits of 80S are 60S and 30S, and those of 70S are 50S and 30S. |
| 1. | A, B and E are true | 2. | B, D and E are true |
| 3. | A, B and C are true | 4. | A, B and D are true |
Subtopic: Ribosome and Inclusion Bodies |
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A specialised membranous structure in a prokaryotic cell which helps in cell wall formation, DNA replication is :
1. Cristae
2. Endoplasmic Reticulum
3. Mesosome
4. Chromatophores
1. Cristae
2. Endoplasmic Reticulum
3. Mesosome
4. Chromatophores
Subtopic: Cell Envelope and its Modifications |
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Match List-I with List-II.
Choose the correct answer from the options given below:
| List-I | List-I | ||
| A. | Centromere | I. | Mitochondrion |
| B. | Cilium | II. | Cell division |
| C. | Cristae | III. | Cell movement |
| D. | Cell membrane | IV. | Phospholipid Bilayer |
| 1. | A-IV, B-II, C-III, D-I | 2. | A-II, B-III, C-I, D-IV |
| 3. | A-I, B-II, C-III, D-IV | 4. | A-II, B-I, C-IV, D-III |
Subtopic: Cell Membrane | Mitochondria | Nucleus | Cilia & Flagella |
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The DNA present in chloroplast is:
| 1. | Circular, double stranded |
| 2. | Linear, single stranded |
| 3. | Circular, single stranded |
| 4. | Linear, double stranded |
Subtopic: Plastids |
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