Nutrition – Online MCQs Test – Biology 9th

1. Goiter is caused by an insufficient amount of:

2. The body needs it to maintain and replace tissues and their functions.

3. Stomach is protected against the action of acid by:

4. It occurs when required water is not absorbed in blood from colon.

5. Saliva is secreted by:

6. Nitro oxide may cause:

7. This leads to obesity, diabetes and cardiovascular problems.

8. Complex food enzymes is broken down into simpler molecules with the help of enzymes produced by an organelle called:

9. Moulds, mushrooms and yeasts are common examples of:

10. To make red blood cells, the body needs:

11. Which of the following is true of bile salts?

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

13. Carnivores consume:

14. Photosynthesis is a process by which chlorophyll having green plants, algae and some bacteria, synthesize the:

15. Small, slippery, spherical mass of food is called:

16. Saliva contains an enzyme called salivary:

17. Deficiency of vitamin-K causes:

18. Number of essential amino acids is:

19. In human digestive system trachea and oesophagus both connect to the:

20. The stomach produces: