Biology Class 10

Life Processes (Nutrition)

Class 10 (CBSE)

Very Short Answers (1 Mark)

 1. State one difference between autotrophic and heterotrophic mode of nutrition.

2. What is the role of saliva in the digestion of food?

 3. What is the role of acid in our stomach?

4. What is the mode of nutrition in fungi and plasmodium?

Short Answers (2 Marks or 3 Marks)

1.       How is small intestine designed to absorb digested food? (2)

2.       Meat is easier to digest as compared to grass. Why?  (2)

3.       Discuss the mode of nutrition in amoeba.  (2)

4.       (ii) Describe the role of following in digestion.  (3)

a) Bile 

b) Salivary amylase 

c) HCl 

5.       What is the role of following in human digestive system  (2) 

a) Bicarbonate       

b) Trypsin

Long Answers (5 Marks)

1. Explain the process of digestion of food in mouth stomach and small intestine in human body. Draw a well labeled diagram.