Biology chapter 12 Transport in organisms mcqs solved

41. The circulating system of man comprises of:

(a) Blood

(b) Pumping heart

(c) Arteries and veins

(d) All above✅

42. The circulatory sytem is of types

(a) Open circulatory system

(b) Closed circulatory type

(c) Both (a) and (b)✅

(d) All above

43. A normal adult has how many litres of blood.

(a) Six to seven✅

(b) Five

(c) Three

(d) Ten litres

44. The blood composed of:

(a) Plasma

(b) Blood cells

(c) Both (a) and (b)✅

(d) None above

45: The liquid part of the blood is called:

(a) Plasma✅

(b) Cells

(c) (a) and (b)

(d) All above

46. Amount of proteins in plasma is:

(a) 7%

(b) 7-8%✅

(c) 10%

(d) 6%

47. Fibrinogen helps in:

(a) Bleeding

(b) Blood clotting✅

(c) Blood forming

(d) Blood lysis

48. Blood cells constitute:

(a) 50%

(b) 45% ✅

(c) 60%

(d) 40%

49. Blood cells are of how types.

(a) Two

(b) Three✅

(c) Four

(d) Five

50. Following are blood cells:

(a) W.B.C.

(b) R.B.C.

(c) Platelets

(d) Proteins✅

51. R.B.C. contains special types of proteins called:

(a) Haemoglobin✅

(b) Fibrin

(c) Fibrinogen

(d) Androgen

52. One cubic millimetre of blood contain R.B.C's

(a) 5 lacs

(b) 5 million✅

(c) 5 billion

(d) 5 crore

53. The life span of R.B.C. is:

(a) 8 days

(b) 120 days✅

(c) 100 days

(d) 200 days

54. R.C.B.'s are:

(a) Spherical

(b) Biconcave

(c) Without a nucleolus

(d) All above✅

55. In one cubic mm of blood there are________WBCs.

(a) 1 million

(b) 6,000-8,000✅

(c) 10,000

(d) 10,000

56. Following are the types of W.B.C.'s

(a) Neutrophiles

(b) Eisinophils and basophiles

(c) Monocytes

(d) All above✅

57. Which are disc shaped and without nuclei

(a) Platelets✅

(b) W.B.C.

(c) R.B.C's

(d) Basophils

58. One cubic millimeter of blood contains about cell:

(a) 250,000-600,000✅

(b) One million

(c) Two million

(d) 1 crore

59. The life span of platelets is:

(a) six days✅

(b) Ten days

(c) four days

(d) 120 days

60. Platelets helps in:

(a) Blood clotting✅

(b) Blood lysis

(c) Blood forming

(d) Blood movement

61. Following is/are the functions of blood:

(a) Transportation

(b) Regulation of body temp.

(c) Defence against diseases

(d) All above✅

62. The vessels which carry blood away from heart are called:

(a) Veins

(b) Arteries✅

(c) Capillaries

(d) All above

63. The vessels which carry blood into the heart are called:

(a) Veins✅

(c) Capillaries

(b) Arteries

(d) All above

64. The human heart is divided into how many chambers:

(a) Four✅

(b) Two

(c) Three

(d) Five

65. The force of blood against the walls of blood vessels is called:

(a) Blood force

(b) Blood pressure✅

(c) Tension

(d) Hypertension

66. Which group of blood is universal donor:

(a) O group✅

(b) AB group

(c) A +

(d) B+

67. Which group of blood is universal recipient:

(a) O group

(b) AB group✅

(c) A+

(d) B+

68. The state in which hemoglobin level is below normal is called:

(a) Anemia✅

(b) Polycythemia

(c) Harmophilia

(d) Thalesemia

69. The disease in which the blood fails to clot after injury is called:

(a) Anaemia

(b) Polycythemia

(c) Thalesemia

(d) Haemophilia✅

70. The symptoms of angina pectoris is:

(a) Pain in the centre of the chest

(b) Moving pain in the left arm and shoulder

(c) Both (a) and (b) ✅

(d) None

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Biology chapter 12 Transport in organisms Past paper solved mcqs

 21. The cell sap is a solution of:

(a) Water

(b) Salts

(c) Sugars

(d) All above✅

22. The membrane of the vacuole is called:

(a) Cell membrane

(b) Vacuole membrane

(c) Tonoplast✅

(d) Nuclear membrane

23. Wilting occurs as a result of:

(a) Plasmolysis

(b) Loss of turgidity

(c) Both (a) and (b)✅

(d) None above

24. In plants vascular styem is present in

(a) Flowering plants✅

(b) None-flowering plants

(c) Bryophytes

(d) All plants

25. The rising of soil solution from the bottom to the top of a plant through xylum is called

(a) Rising

(b) Ascent of sap✅

(c) Descent of safe

(d) Ascent of safe

26. Dixon and Jolly presented the theory.

(a) Cohesion tension theory✅

(b) Cell theory

(c) Both (a) & (b)

(d) None

27. One of the causes of ascent of sap is:

(a) Transpiration pull✅

(b) Osmosis

(c) Diffusion

(d) All above

28. The suction force developed as a result of transpiration is called

(a) Function

(b) Transpiration pull✅

(c) Respiration pull

(d) Transportation pull

29. The food manufactured in leaves is transported in the phloem for:

(a) Use

(b) Execution

(c) Storage

(d) (a), and (c)✅

30. Leaves make the food in the form of:

(a) Proteins

(b) Lipids

(c) Carbohydrates✅

(d) All above

31. Food in plant is stored in the form of.

(a) Glucose

(b) Sucrose

(c) Starch✅

(d) All above

32. Plants store carbohydrates in:

(a) Roots

(b) Stem

(c) Leaves

(d) All above✅

33. Fruits and seeds stores:

(a) Carbohydrates

(b) Proteins

(c) Fats

(d) All above✅

34. The evaporation of water from the aerial parts of a plant mainly through stomata is called:

(a) Expiration

(b) Transpiration✅

(c) Execution

(d) All above

35. The small pores distributed over the surface of leaves and young stem is called

(a) Poles

(b) Stomatas✅

(c) Adidas

(d) Patatas

36. Each pole of stomata is guarded by two cells called:

(a) Stomata cells

(b) Guard cells✅

(c) Pole cells

(d) All above

37. 90% loss of water in transpiration occur through

(a) Lenticels

(b) Stomata✅

(c) Cell surfaces

(d) Diffusion

38. 5-10% transpiration occur through:

(a) Cuticles or lenticels✅

(b) Stomata

(c) Surfaces

(d) Stem

39. Following are factors affecting transpiration,

(a) Light

(b) temperature

(c) Humidity

(d) All above✅

40. The drooping of leaves and greens tender stem of a plant as a result of excessive evaporation is called:

(a) Wilting✅

(b) Welding

(c) Melting

(d) Drying

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Biology chapter 12 Transport in organisms solved mcqs

1. The movement of substances from one part to another part within the body of living organisms is called:

(a) Movement

(b) Transaction

(c) Transport✅

(d) All above

2. The waste products diffuses outward through the:

(a) Cell membrane✅

(b) Nuclear membrane

(c) Both a and b

(d) None above

3. In flowering plants which system is responsible for transport of materials:

(a) Muscular system

(b) Vascular system✅

(c) Arterial system

(d) Venous system

4. Vascular system consists of:

(a) Xylum

(b) Phloem

(c) Both a and b✅

(d) None above

5. Which vessel transport water and dissolved substance:

(a) Xylum✅

(b) Phloèm

(c) Both a and b

(d) None

6. Which transport food:

(a) Xylum

(b) Phloem✅

(c) Both a and b 

(d) None

7. In protoplasm, water quantity is:

(a) 70%

(b) 95%

(c) 70-95%✅

(d) 60%

8. Which acts as a medium for transport of mineral.

(a) Water✅

(b) Oil

(c) Xylum

(d) Phloem

9. how many processes (Cansport of material in plant is brought about by

(a) Two✅

(b) Three

(c) Four

(d) One

10. The movement of the materials across the cell membrane without expenditure of energy is called

(a) Active transport

(b) facilitated transport

(c) Passive transport✅

(d) All

11. The movement of molecules/ions from a region of its higher concentration to a region of its lower concentration is called:

(a) Effusion

(b) Diffusion✅

(c) Osmosis

(d) All above

12. Transpiration is an example of:

(a) Osmosis

(b) Diffusion✅

(c) Plasmolysis

(d) None

13. Breathing is an example of:

(a) Osmosis

(b) Diffusion✅

(c) Transpiration

(d) Effusion

14. The diffusion of solvent through a semi permeable membrane is called

(a) simple diffusion

(b) Osmosis✅

(c) Effusion

(d) Transport

15. When a cell absorb water, it swells and become

(a) Lysed

(b) Turgid✅

(c) Shrints

(d) None

16. The shrinkage of protoplasm due to loss of water is called

(a) Plasmolysis✅

(b) Bursting

(c) Shrinkage

(d) None above

17. The movement of substances across a cell membrane against concentration gradient with the help of energy is called:

(a) Transport

(b) Passive transport✅

(c) Active Transport

(d) Facilitated transport

18. The cell membrane is:

(a) Living

(b) None living

(c) Semi permeable

(d) Both (a) and (c)✅

19. Cell membrane consists of:

(a) Protein

(b) Lipids

(c) Carbohydrates

(d) Both (a) and (b)✅

20. The cell wall is:

(a) Living

(b) None living✅

(c) Both (a) and (b)

(d) None

21. The cell sap is a solution of:

(a) Water

(b) Salts

(c) Sugars

(d) All above✅

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