CBSE Class 11 Biology Digestion And Absorption Worksheet Set G

DIGESTION AND ABSORPTION

1. Enumerate the functions of saliva.

2. Why do you refer to human teeth as:

a) Thecodont
b) Heterodont
c) Diphyodont

3. Give the dental formula of

a) Human adult
b) Human milk teeth

4. Draw a neat labeled diagram showing the anatomy of wall layers of alimentary canal. Also mention the names of different layers.

5. Name the salivary glands.

6. Describe the digestion of milk in an infant.

7. When the stomach wall contracts, the food does not come back into the oesophagus. Give reason.

8. List the functions of large intestine.

9. What are villi? Write their function.

10. Draw neat labeled diagrams of the following:

a) Section of small intestinal mucosa showing villi.
b) The duct systems of liver, gall bladder and pancreas.

11. Pancreas is known as heterogenous gland. Give reason.

12. Differentiate between ‘bolus’ and ‘chyme’.

13. Bile does not contain any enzyme. Still it is important for digestion. Justify.

14. Describe the process of starch digestion in the alimentary canal.

15. Harsh took bread and butter for his breakfast. Explain the course of digestion of butter in his digestive system. Also mention the enzymes involved.

16. Make a table showing different enzymes involved in protein digestion, their site of secretion and function

17. List the components of bile.

18. Briefly describe two disorders associated with digestive system.

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