Biology Life process in Animals & Plants Online Mcqs Test

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Question 1

1. Which part of the small intestine absorbs nutrients?

Question 2

2. What is the main gas exchanged in photosynthesis?

Answer

Nitrogen fixed

Answer

Oxygen released

Answer

Oxygen taken in

Answer

Carbon dioxide released

Question 3

3. Where is oxygen primarily transported in the blood?

Answer

Dissolved in plasma

Answer

Carried by white blood cells

Answer

Bound to platelets

Answer

Attached to hemoglobin in red blood cells

Question 4

4. What structure separates the chest cavity from the abdominal cavity?

Question 5

5. Which component of blood helps in defense against pathogens?

Answer

White blood cells

Answer

Red blood cells

Question 6

6. What causes the upward movement of water in xylem?

Answer

Transpiration pull

Answer

Root pressure only

Question 7

7. Which structure in a plant is mainly responsible for water uptake?

Question 8

8. Which of the following plants traps insects using sticky substances?

Question 9

9. Which structure in plants is responsible for the transport of organic nutrients?

Answer

Parenchyma

Answer

Collenchyma

Question 10

10. Which of the following is a function of the lymphatic system?

Answer

Oxygen transport

Answer

Digestion of food

Answer

Return of tissue fluid to the blood

Answer

Hormone production

Question 11

11. What is the role of stomata in plants?

Answer

Photosynthesis

Answer

Seed dispersal

Answer

Gaseous exchange and transpiration

Answer

Absorption of nutrients

Question 12

12. Which blood vessel carries oxygenated blood from the lungs to the heart?

Answer

Pulmonary artery

Answer

Pulmonary vein

Question 13

13. The pancreas secretes which of the following?

Answer

Adrenaline

Answer

Hydrochloric acid

Answer

Insulin and digestive enzymes

Question 14

14. The tissue responsible for transporting water in plants is:

Answer

Parenchyma

Answer

Collenchyma

Question 15

15. Which component of blood helps in oxygen transport?

Answer

White blood cells

Answer

Red blood cells

Question 16

16. What is the main function of hemoglobin?

Answer

Digest food

Answer

Produce hormones

Answer

Transport oxygen

Answer

Fight infection

Question 17

17. Which component of the immune system is responsible for producing antibodies?

Answer

Neutrophils

Answer

Macrophages

Question 18

18. Which of the following is not a function of the liver?

Answer

Storage of glycogen

Answer

Bile production

Answer

Red blood cell production

Answer

Detoxification

Question 19

19. Which gland produces antibodies?

Answer

B cells (lymphocytes)

Answer

Lymph nodes

Question 20

20. Which part of the nephron is responsible for filtration?

Answer

Collecting duct

Answer

Loop of Henle

Answer

Distal tubule

Answer

Bowman's capsule

Question 21

21. Which enzyme is found in saliva?

Question 22

22. Where does the digestion of carbohydrates begin?

Answer

Small intestine

Question 23

23. Which of the following carries deoxygenated blood?

Answer

Pulmonary artery

Answer

Pulmonary vein

Answer

Carotid artery

Question 24

24. Which blood component defends the body against infection?

Answer

White blood cells

Answer

Red blood cells

Question 25

25. Which part of the human heart pumps oxygenated blood to the body?

Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Answer

Left ventricle

Question 26

26. Which of the following is not part of the lymphatic system?

Answer

Bone marrow

Question 27

27. Which part of the brain regulates breathing rate?

Answer

Cerebellum

Answer

Medulla oblongata

Answer

Hypothalamus

Question 28

28. Which digestive organ is responsible for absorbing most nutrients?

Answer

Small intestine

Answer

Large intestine

Question 29

29. What is the function of the large intestine?

Answer

Water absorption

Answer

Fat digestion

Answer

Oxygen exchange

Answer

Protein digestion

Question 30

30. What is the role of lymph?

Answer

Filter blood

Answer

Return tissue fluid to the bloodstream

Answer

Carry oxygen

Answer

Produce red blood cells

Question 31

31. Which enzyme digests proteins in the stomach?

Question 32

32. Which part of the respiratory system contains vocal cords?

Question 33

33. The main pumping chamber of the human heart is:

Answer

Left atrium

Answer

Right ventricle

Answer

Right atrium

Answer

Left ventricle

Question 34

34. Which organ filters lymph?

Answer

Lymph node

Question 35

35. Which blood vessel carries blood away from the heart?

Answer

Capillaries

Question 36

36. Where does gaseous exchange occur in the lungs?

Question 37

37. Which gas is released during cellular respiration?

Answer

Carbon dioxide

Question 38

38. Which pressure influences water movement in plant cells?

Answer

Air pressure

Answer

Osmotic pressure

Answer

Blood pressure

Answer

Atmospheric pressure

Question 39

39. Which blood vessel is the site of exchange of gases and nutrients?

Answer

Lymph vessel

Question 40

40. Which of the following plants uses trap-like structures to capture insects?

Answer

Venus flytrap

Question 41

41. What is the primary organ for digestion in the human body?

Answer

Large intestine

Question 42

42. Which component of the immune system engulfs bacteria?

Answer

Phagocytes

Answer

Red blood cells

Question 43

43. Which structure in the human body acts as a natural pacemaker?

Answer

Bundle of His

Answer

Purkinje fibers

Question 44

44. What is the function of the trachea?

Answer

Food digestion

Answer

Voice production

Answer

Air passage to lungs

Answer

Blood circulation

Question 45

45. Which component of the blood helps in clotting?

Question 46

46. What is the function of chlorophyll in plants?

Answer

Sugar storage

Answer

Seed dispersal

Answer

Light absorption for photosynthesis

Answer

Water absorption

Question 47

47. Which of the following is a plant with pitcher-shaped leaves used to trap insects?

Answer

Bryophyllum

Answer

Pitcher plant

Question 48

48. What part of the immune system destroys infected or abnormal body cells?

Answer

Plasma cells

Answer

Neutrophils

Question 49

49. Which plant part transports food in plants?

Question 50

50. Which plant shows parasitic nutrition?

Answer

Cuscuta (dodder)

Answer

Pitcher plant

Question 51

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Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Biology Test MDCAT Test FPSC/PPSC/SPSC/KPPSC/BPSC/AJKPSC/NTS Biology Interview Question Answer Universities Entrance Test

Biology Life process in Animals & Plants Online Mcqs Test

Important Biology Life process in Animals & Plants Question and Answer

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Important Biology Life process in Animals & Plants Question and Answer

Biology Life process in Animals & Plants Practice Test Online With Explanation

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Malik Tahir

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