Nutrition – Online MCQs Test – Biology 9th

1. In paramecium, food is ingested through a special opening called:

2. The churning action of stomach produces heat which helps to melt:

3. Green plants are:

4. Which of the following statements describes pepsin?

5. Which of the following statement is correct?

6. An adult’s digestive tract is about:

7. Waves of rhythmic movements of muscle contractions and relaxation which force down food through the oesophagus to the stomach is called:

8. At the end of the oesophagus, a muscle that allows food to enter the stomach and preventing food to flow back into the oesophagus is called:

9. Saliva is secreted by:

10. An organism needs It in small quantities for the proper functioning of its metabolism.

11. Undigested food is passed into:

12. The largest part of stomach is:

13. Extra ammonia can increase:

14. Gastric juice composed of:

15. Herbivores consume:

16. It is a component of hemoglobin In red blood cells and Myoglobin in muscle cells.

17. Photosynthesis is a process by which chlorophyll having organisms, synthesize glucose from:

18. Heterotrophs are also called:

19. The hydrochloric acid in gastric juice converts the inactive enzyme pepsinogen into active form called:

20. Heptic portal vein carries food to the: