MCQ Questions for Class 10 Science Chapter 6 Life Processes

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MCQ Questions for Class 10 Science Chapter 6 Life Processes are effective because they can test a wide range of knowledge in a short amount of time. These questions can help you better understand the material, identify your weaknesses, and focus your studying.

Practicing with Chapter 6 Class 10 Science MCQ questions will help you improve your speed and accuracy on the exam. These questions will fulfil the needs of every students and speed up their learning process.

Chapter 6 Life Processes Class 10 Science MCQ Questions

1. The process by which Amoeba obtains food is called
(a) Phagocytosis
(b) Assimilation
(d) A saprophyte
(d) Absorption
▶ (a) Phagocytosis

2. The mode of nutrition found in fungi is:
(a) Parasitic nutrition
(b) Holozoic nutrition
(c) Autotrophic nutrition
(d) Saprotrophic nutrition
▶ (d) Saprotrophic nutrition

3. Which of the following organisms absorbs nutrition with haustoria?
(a) A carnivore
(b) A herbivore
(c) A parasite
(c) diffusion
▶ (c) A parasite

4. In which mode of nutrition an organism derives its food from the body of another living organism without killing it?
(a) Saprotrophic nutrition
(b) Parasitic nutrition
(c) Holozoic nutrition
(d) Autotrophic nutrition
▶ (b) Parasitic nutrition

5. Among the following choose the correct option which includes the organisms that have a holozoic mode of nutrition:
(a) Plasmodium and Amoeba
(b) Parakeet and Amoeba
(c) Paramecium and Plasmodium
(d) Paramecium and Parasite
▶ (b) Parakeet and Amoeba

6. Raw materials required in the autotrophic mode of nutrition involves:
(i) Carbon dioxide and water
(ii) Chlorophyll
(iii) Nitrogen
(iv) Sunlight
(a) (i), (ii) and (i)
(b) (i) and (ii)
(c) (i), (ii) and (iv)
(d) All (i), (i), (ii) and (iv)
▶ (c) (i), (ii) and (iv)

7. Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?
(a) Starch breaking down into sugars.
(b) Proteins breaking down into amino acids.
(c) Absorption of vitamins.
(d) Fats breaking down into fatty acids and glycerol.
▶ (a) Starch breaking down into sugars.

8. Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of
(a) hydrochloric acid
(b) fat
(c) carbon dioxide
(d) lactic acid
▶ (d) lactic acid

9. Movement of the synthesized products from the leaves to the roots and other parts of a plant’s body takes place through the phloem. This process is known as
(a) translocation
(b) transpiration
(c) transportation
(d) excretion
▶ (a) translocation

10. Which region of the alimentary canal absorbs the digested food?
(a) Stomach
(b) Small intestine
(c) Large intestine
(d) Liver
▶ (b) Small intestine

11. The vein which brings clean blood from the lungs into the heart is known as
(a) pulmonary vein
(b) hepatic vein
(c) superior vena cava
(d) pulmonary artery
▶ (a) pulmonary vein

12. Which of the following help in protecting the inner lining of the stomach from the harmful effect of hydrochloric acid?
(a) Mucus
(b) Pepsin
(c) Trypsin
(d) Bile
▶ (a) Mucus

13. The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion
▶ (c) peristaltic movement

14. Roots of the plants absorb water from the soil through the process of:
(a) diffusion
(b) transpiration
(c) osmosis
(d) none of these
▶ (c) osmosis

15. Which among the following procedures is used for cleaning the blood of a person by separating the waste substance from it?

(a) Kidney transplant
(c) Dialysis
(b) Blood transfusion
(d) Hydrolysis
▶ (b) Blood transfusion

16. Plants use the energy stored in ATP to accomplish the process of transportation of
(a) water and minerals
(c) water, minerals and food
(b) oxygen
(d) food
▶ (d) food

17. The site of photosynthesis in the cells of a leaf is
(a) chloroplast
(b) mitochondria
(c) cytoplasm
(d) protoplasm
▶ (a) chloroplast

18. The excretory unit of the human excretory system is known as
(a) nephridia
(b) neuron
(c) nephron
(d) kidneys
▶ (c) nephron

19. In which mode of nutrition an organism derives its food from the body of another living organism without killing it?
(a) Saprotrophic nutrition
(b) Parasitic nutrition
(c) Holozoic nutrition
(d) Autotrophic nutrition
▶ (b) Parasitic nutrition

20. Which region of the alimentary canal absorbs the digested food?
(a) Stomach
(b) Small intestine
(c) Large intestine
(d) Liver
▶ (b) Small intestine

21. Roots of the plants absorb water from the soil through the process of
(a) diffusion
(b) transpiration
(c) osmosis
(d) none of these
▶ (c) osmosis

22. The mode of nutrition found in fungi is
(a) parasitic nutrition
(b) holozoic nutrition
(c) autotrophic nutrition
(d) saprotrophic nutrition
▶ (d) saprotrophic nutrition

23. The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion
▶ (c) peristaltic movement

24. The site of photosynthesis in the cells of a leaf is
(a) chloroplast
(b) mitochondria
(c) cytoplasm
(d) protoplasm
▶ (a) chloroplast

25. When a few drops of iodine solution are added to rice water, the solution turns blue-black in colour. This indicates that rice water contains:
(a) fats
(b) complex proteins
(c) starch
(d) simple proteins
▶ (c) starch

26. Which of the following are energy foods?
(a) Carbohydrates and fats
(b) Proteins and mineral salts
(c) Vitamins and minerals
(d) Water and roughage
▶ (a) Carbohydrates and fats

27. Which among the following is necessary to carry out the blood coagulation in a cut or wound?
(a) White blood cells
(b) Blood plasma
(c) Platelets
(d) Red blood cells
▶ (c) Platelets

28. The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
(a) cytoplasm
(b) mitochondria
(c) chloroplast
(d) nucleus
▶ (b) mitochondria

29. What are the products obtained by anaerobic respiration in plants?
(a) Lactic acid + Energy
(b) Carbon dioxide + Water + Energy
(c) Ethanol + Carbon dioxide + Energy
(d) Pyruvate
▶ (c) Ethanol + Carbon dioxide + Energy

30. The contraction and expansion movement of the walls of the food pipe is called
(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion
▶ (c) peristaltic movement

31. Which part of nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?
(a) Tubule
(b) Glomerulus
(c) Bowman’s capsule
(d) Ureter
▶ (a) Tubule

32. A blood vessel which pumps the blood from the heart to the entire body is called
(a) artery
(b) capillary
(c) vein
(d) haemoglobin
▶ (a) artery

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