The process of obtaining food by is called phagocytosis. 4. The process of taking food into the body is called and while the process in which

the undigested food is removed from the body is called .

5. All the processes of nutrition are performed by the single cell in animals and

is one such animal which lives in water.

6. The process in which the absorbed food is taken in by the body cells and used for

energy, growth and repair is called .

7. The various organs of the human digestive system in sequence are:

,,, and .

8. The is a J-shaped organ present on the left side of the abdomen.

9. The gastric juice contains three substances , the enzyme pepsin

and mucus.

10. The small intestine in human beings is the site of complete digestion of food (like

carbohydrates, proteins and fats) and it receives the secretion of two glands

and .

11. The process in which the food containing large, insoluble molecules is broken down

into small, water soluble molecules is called and while the process in which the

digested food passes through the intestinal wall into blood stream is called

.

12. The is the main region for the absorption of digested food.​