Class XI Biology MCQs

Biology XI-Cell Structure and Function MCQS-PDF

1. Cell wall is not found in:
2. Secondary wall is present on the inner side of:
3. Cell wall is present on the outer side of:
4. Cell membrane is found:
5. The process of taking fluid in large amount by cell membrane is called:
6. The process in which cell membrane absorbs solid particles is called:
7. The process of movement of molecules from lower to higher concentration is called:
8. Ribosomes take part in:
9. Mitochondria take part in:
10. Mitochondria and ribosomes are present:
11. The number of chromosomes in human being is:
12. The number of chromosomes in Drosophila is:
13. The number of chromosomes in corn is:
14. The rod-shaped chromosomes, having centromere at the end are called:
15. The chromosome which is rod-shaped with one arm smaller and other is long, called:
16. The J-shaped chromosome with unequal arms is called:
17. The V-shaped chromosome with equal arms is called:
18. The chromosome consists of two thread like structures, called:
19. The two chromatids are connected to each other by a small body, called:
20. In eukaryotic cell the nucleolus takes part in the synthesis of RNA and:
21. Smooth endoplasmic reticulum SER in the skin converts cholesterol into:
22. The vitamin which helps to maintain strong and healthy bones is called:
23. Mitochondria are passed to an animal only by:
24. Lysosomes are originated by:
25. When the membrane of lysosome is ruptured, the cell undergoes chemical breakdown, called:
26. The absence of α-glucosidase enzyme may cause lysosomal storage diseases:
27. The absence of α-glucosidase enzyme may cause ________ diseases:
28. In lysosomal storage diseases, mental retardation, blindness, death by age 3 are the symptoms of ________ disease:
29. In lysosomal storage diseases, liver and spleen enlargement, erosion of long bones are the symptoms of ________ disease:
30. In lysosomal storage diseases, loss of myelin, mental retardation, death by age 2 are the symptoms of ________ disease:
31. The projections of inner membrane of mitochondria are called:
32. The cristae of mitochondria contain:
33. Respiratory enzymes are present on:
34. Power house are called:
35. The inner most part of mitochondria is called:
36. Golgi apparatus was discovered by:
37. Golgi apparatus consists of flattened sac like structures, called:
38. In animal cells the Golgi bodies secrete:
39. In plant cells the Golgi bodies take part in:
40. Hydrolytic enzymes are secreted by:
41. Hydrolytic enzymes are present in:
42. Protein factories are called:
43. Ribosomes are rich with:
44. The organelles which take part in the formation of nuclear spindle and astral fibres are called:
45. The outer layer of cytoplasm around vacuole is called:
46. The inner fluid of vacuole is called:
47. The cell sap of vacuole contains:
48. Lysosomes are also called:
49. Coloured bodies in plant cells are called:
50. White plastids are called:
51. The function of leucoplasts is:
52. Green plastids in plants are called:
53. The plastids which contain different colours in plants are called:
54. The attraction of insects towards flowers is the function of:
55. The layer of cell wall present between two cells is called: