Life Science CSIR NET JRF - Cell Biology questions - Part - 1

1. Which of the following is not a function of mitotic cell division in
(a) repair of damaged organs (b) production of gametes
(c) asexual reproduction (d) growth

2. Which of the following would not be considered part of a cell’s cytoplasm?
(a) a ribosome (b) the nucleus
(c) a mitochondrion (d) a microtubule

3. It is difficult to observe individual chromosomes with a light microscope during interphase because:
(a) they have uncoiled to form long, thin strands
(b) they leave the nucleus and are dispersed to other parts of the cell
(c) the DNA has not been replicated yet
(d) the spindle must move them to the metaphase plate before they become

4. The maximum size of a cell is limited by
(a) its need for enough surface area for exchange with its environment.
(b) the number of organelles that can be packed inside.
(c) the materials needed to build it.
(d) the amount of flexibility it needs to be able to move.

5. You would expect a cell with an extensive Golgi apparatus to
(a) make a lot of ATP. (b) secrete a lot of material.
(c) move actively. (d) perform photosynthesis.

6. Which of the following correctly matches an organelle with its function?
(a) mitochondrion . . . photosynthesis
(b) nucleus . . . cellular respiration
(c) ribosome . . . manufacture of lipids
(d) central vacuole . . . storage

7. Mitochondria and cholorplasts share several common features, for example,
(a) both are capable of semiautonomous growth and reproduction.
(b) neither are components of the endomembrane system.
(c) each contains a small amount of DNA
(d) all of the above.

8. In muscle cells the ____ is specialized for the storage and release of calcium.
(a) smooth ER (b) the Golgi apparatus
(c) contractile vacuoles (d) rough ER

9. Of the following organelles, which group is involved in manufacturing substances needed by the cell?
(a) lysosome, vacuole, ribosome
(b) ribosome, rough ER, smooth ER
(c) vacuole, rough ER, smooth ER
(d) smooth ER, ribosome, vacuole

10. The internal skeleton of a cell is composed of
(a) microtubules, intermediate filaments, and microfilaments.
(b) cellulose and intermediate filaments.
(c) cellulose, microtubules, and centrioles.
(d) microfilaments.

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