Class 10 - Science

Life Process Online MCQ Test

Olympiad Level MCQs Also Included

→ Assertion Reason type questions in SET-6

Set-1 Set-2 Set-3 Set-4 Set-5 Set-6

1. Which of the following statements are true about autotrophs?

(A) They convert carbon dioxide and water into carbohydrates in presence of light.
(B) They store carbohydrates in the form of starch.
(C) They occupy second trophic level in food chains.
(D) They are chlorophyll-bearing organisms.

2. In human body, food is finally digested in

(A) large intestine
(B) small intestine
(C) stomach
(D) oesophagus

3. Which of the following events takes place during photosynthesis?

(A) Trapping of light energy by chlorophyll molecules
(B) Conversion of light energy to chemical energy
(C) Reduction of CO₂ to carbohydrates
(D) Release of C₂2 in the atmosphere

4. The muscular and tubular part of the alimentary canal is called

(A) pharynx
(B) small intestine
(C) oesophagus
(D) stomach

5. Which of the following functions is carried out by pancreatic juice?

(A) Lipase emulsifies fats and trypsin digests proteins.
(B) Lipase digests carbohydrates and trypsin digests fats.
(C) Lipase emulsifies both carbohydrates and fats.
(D) Trypsin digests both proteins and fats.

6. In which of the following groups of organisms food material is broken down outside the body?

(A) Cuscuta, Amoeba, green plants
(B) Amoeba, Paramoecium, Cuscuta
(C) Yeast, green plants, mushroom
(D) Mushroom, bread mould, yeast

7. Which of the following protects the inner lining of stomach from hydrochloric acid?

(A) Mucus
(B) Bile
(C) Pepsin
(D) None of the above

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

(A) Production of bile
(B) Regulation of blood sugar
(C) Production of pepsin
(D) Detoxification of harmful substances

9. Which of the following is not a part of the human circulatory system?

(A) Heart
(B) Blood vessels
(C) Blood
(D) Lungs

10. Which of the following is not a waste product in plants?

(A) Oxygen
(B) Water vapour
(C) Carbon dioxide
(D) None of the above