Q. No.The discovery of the triple helical structure of collagen is credited to:
| 1. | Anand Chakravarty |
| 2. | G. S. Khush |
| 3. | Venkatraman Ramakrishnan |
| 4. | G. N. Ramachandran |
Subtopic: Introduction to Cell |
90%
Level 1: 80%+
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Subtopic: Introduction to Cell |
97%
Level 1: 80%+
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Who discovered the nucleus in a cell?
| 1. | Theodor Schwann |
| 2. | Anton Von Leeuwenhoek |
| 3. | Robert Brown |
| 4. | Matthias Schleiden |
Subtopic: Introduction to Cell |
96%
Level 1: 80%+
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Different cells have different sizes. Arrange the following cells in an ascending order of their size. Choose the correct option among the followings
| i. | Mycoplasma |
| ii. | Ostrich eggs |
| iii. | Human RBC |
| iv. | Bacteria |
Options:
| 1. | i, iv, iii & ii |
| 2. | i, ii, iii & iv |
| 3. | ii, i, iii & iv |
| 4. | iii, ii, i& iv |
Subtopic: Introduction to Cell |
91%
Level 1: 80%+
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| Assertion (A): | Cell is the fundamental structural and functional unit of all living organisms. |
| Reason (R): | Anything less than a complete structure of a cell does not ensure independent living. |
| 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. |
Subtopic: Introduction to Cell |
89%
Level 1: 80%+
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The famous aphorism “Omnis cellla–e cellula” was given by
| 1. | Matthias Schleiden |
| 2. | Theodor Schwann |
| 3. | Rudolph Virchow |
| 4. | Robert Brown |
Subtopic: Introduction to Cell |
97%
Level 1: 80%+
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Which organelle is seen in both prokaryotic and eukaryotic cells?
| 1. | Chloroplast | 2. | Centrosome |
| 3. | Golgi apparatus | 4. | Ribosome |
Subtopic: Introduction to Cell | Ribosome and Inclusion Bodies |
95%
Level 1: 80%+
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The main arena of various types of activities of a cell is –
1. Plasma membrane
2. Mitochondrian
3. Cytoplasm
4. Nucleus
Subtopic: Introduction to Cell |
92%
Level 1: 80%+
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A plasma membrane is characteristic of
| 1. | all cells |
| 2. | prokaryotic cells only |
| 3. | eukaryotic cells only |
| 4. | animal cells only |
Subtopic: Introduction to Cell | Cell Membrane |
92%
Level 1: 80%+
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The shape of the R.B.C is
| 1. | round and convex |
| 2. | round and concave |
| 3. | round and biconcave |
| 4. | round and biconvex |
Subtopic: Introduction to Cell |
87%
Level 1: 80%+
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