Science Class 6th

41. helps to see Amoeba clearly?

A. Lens

B. Telescope

C. Microscope

D. None of these

42. Waste material in cells are stored in ?

A. Vacuole

B. Nucleus

C. Mitochondria

D. None of these

43. Power House of cell is?

A. Nucleus

B. Mitochondria

C. Vacuole

D. None of these

44. Single and Large vacuole is present in cell.

A. Plant

B. Animal

C. Both (a) and (b)

D. None of these

45. Outermost layer in plant cell is?

A. Cell membrane

B. Cell wall

C. None of these

46. Cell was discovered by while observing cork cells.

A. Robert Brown

B. W. B. Yeast

C. Robert Hook

D. None of these

47. is very hard.

A. Cell wall

B. Cell membrane

C. Nucleus

D. Mitochondria

48. The movement of material in cell is controlled by?

A. Cell wall

B. Nucleus

C. Cell membrane

D. None of these

49. Cytoplasm is ?

A. Viscous

B. Thick

C. Hard

D. Both (a) and (b)

50. The space between cell membrane and nuclear membrane is filled by?

A. Water

B. Mitochondria

C. Cytoplasm

D. None of these

51. is responsible for cell division.

A. Nucleus

B. Centriole

C. Cell wall

D. All of these

52. Sac like structure in cell is called ?

A. Vacuole

B. Nucleus

C. Cytoplasm

D. None of these

53. Vacuole lies in the central position in?

A. Plants

B. Animals

C. Both (a) and (b)

D. None of these

54. Eye ball in human eye is?

A. Hollow

B. Spherical

C. Liquid

D. Both (a) and (b)

55. Eye is protected by?

A. Eye lid

B. Sclera

C. Choroid

D. None of these

56. Outermost white part of eye is?

A. Choroid

B. Sclerotic

C. Eye lid

D. None of these

57. protects inner parts of the eye.

A. Sclerotic

B. Eye ball

C. Eyelid

D. All of these

58. Thin and transparent layer which bulges out is called?

A. Sclerotic

B. Eye ball

C. Eye

D. Cornea

59. Colored area behind Cornea is called?

A. Iris

B Lens

C. Sclera

D. None of these