Cell The Unit of Life MCQ Set-5
41. What is the name of the non-membrane-bound organelle found in animal cells that helps in cell division?
A. Chloroplast
B. Nucleus
C. Centrosome
D. Mitochondria
Answer –C. Centrosome
Explanation-
42. What is the size of Mycoplasmas, the smallest cells?
A. 0.03 µm
B. 0.3 µm
C. 3 µm
D. 30 µm
Answer –B. 0.3 µm
Explanation-
43. What is the size range of bacteria?
A. 0.3 to 0.5 µm
B. 3 to 5 µm
C. 30 to 50 µm
D. 300 to 500 µm
Answer –B. 3 to 5 µm
Explanation-
44. What is the largest isolated single cell?
A. Egg of an ostrich
B. Human red blood cell
C. Bacteria
D. Mycoplasma
Answer –A. Egg of an ostrich
Explanation-
45. What is the diameter of human red blood cells?
A. 0.7 µm
B. 7.0 µm
C. 70 µm
D. 700 µm
Answer –B. 7.0 µm
Explanation-
46. Which type of cells are some of the longest cells?
A. Epithelial cells
B. Nerve cells
C. Muscle cells
D. Connective tissue cells
Answer –B. Nerve cells
Explanation-
47. In what ways may cells vary in their shape?
A. Only disc-like and polygonal
B. Only columnar and cuboid
C. Disc-like, polygonal, columnar, cuboid, thread-like, or irregular
D. Only thread-like and irregular
Answer – C. Disc-like, polygonal, columnar, cuboid, thread-like, or irregular
Explanation-
48. Does the shape of the cell vary with its function?
A. Yes
B. No
C. Maybe
D. None of the above
Answer –A. Yes
Explanation-
49. What are some examples of prokaryotic cells?
A. Animal cells and plant cells
B. Fungi cells and algae cells
C. Bacteria, blue-green algae, mycoplasma, and PPLO
D. None of the above
Answer – C. Bacteria, blue-green algae, mycoplasma, and PPLO
Explanation-
50. Which type of cells are represented by bacteria, blue-green algae, mycoplasma, and PPLO?
A. Eukaryotic cells
B. Prokaryotic cells
C. Animal cells
D. Plant cells
Answer –B. Prokaryotic cells
Explanation-
