I: | Nuclear envelope consists of two parallel membranes with a perinuclear space between them. |
II: | Nuclear pore is formed by the fusion of two nuclear membranes at points where they interrupt the nuclear envelope. |
III: | Large and more numerous nucleoli are present in the cells actively carrying out protein synthesis. |
1. Only I | 2. Only II |
3. Only III | 4. None |
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1. metacentric | 2. sub-metacentric |
3. acrocentric | 4. telocentric |
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1. DNA | 2. Basic histones |
3. Non-histone proteins | 4. Polysachharides |
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A. | Anton Von Leeuwenhoek | The first man to witness a live cell under a microscope |
B. | Schleiden and Schwann | Proposed cell theory |
C. | Rudolph Virchow | Proposed spontaneous generation of life |
1. | Only A and B | 2. | Only A and C |
3. | Only B and C | 4. | A, B and C |
I: | 10-20 µm |
II: | 0.2-2.0 µm |
III: | About 10 µm |
IV: | 1-2 µm |
1. | Only I and III | 2. | Only I and IV |
3. | Only II and III | 4. | Only I, II and IV |
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A: | Fimbriae | B: | Cell wall |
C: | Mesosome | D: | Plastid |
1. | Only A and B | 2. | Only B and D |
3. | Only B and C | 4. | Only A and D |
I: | It shows a polysome. |
II: | All ribosomes will be translating the same protein. |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
I: | A is the flagellum which is made of protein flagellin and is made of a filament, a hook, and basal body. |
II: | B is lysosome which is a double membrane-bound organelle. |
III: | C is the centrosome and it has two centrioles oriented perpendicular to each other. |
IV: | D is peroxisome and has catalase present in it. |
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | Only III and IV |
I: | A is a major component of animal plasma membranes and it regulates the fluidity of the overall membrane. |
II: | B are integral proteins and C is an extrinsic protein. |
III: | D is the hydrophobic head of the phospholipid and E is its hydrophilic tail. |
IV: | F is a carbohydrate found only on the outer surface of the membrane. |
1. | Only I, II and III | 2. | Only I, II and IV |
3. | Only II III and IV | 4. | I, II, III and IV |
Study the given diagram and select the correct statements regarding the parts labels I, II and III.
A: | I are ribosomes and found only in eukaryotic cells. |
B: | II is Rough Endoplasmic Reticulum frequently observed in cells actively involved in protein synthesis and secretion. |
C: | III is Smooth Endoplasmic Reticulum which is a major site for synthesis of lipids. |
1. | Only A and B | 2. | Only A and C |
3. | Only B and C | 4. | A, B and C |