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 |
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Level 1: 80%+
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The smallest known cells are that of

1. Mycoplasma 2. Bacteria
3. Human RBC 4. Fungi
Subtopic:  Introduction to Cell |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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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