Bio-Assignment-2 (Life Processes)

Foundation Builder Biology Assignment - 2 Class – X Board: CBSE Topic: Life Processes

1.      The finger like projections called villi help in

         (a)   Increasing the surface area for absorption    (b)   Decreasing the surface area for absorption

         (c)   Increasing the surface area for adsorption    (d)   Increase the efficiency of enzyme action

2.      The pancreas pour their secretions into the

         (a)   Small intestine                                              (b)   Stomach

         (c)   Large intestine                                              (d)   Duodenum

3.      Name the digestive glands of humans.

4.      What role do the following enzymes play in digestion?

         (a)   Ptyalin                     (b)   Lipase                    (c)   Pepsin

5.      Write the dental formula for milk teeth.

6.      Where is bile made and stored?

7.       How are fats digested in our bodies? Where does this process take place?

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

9.      Amoeba does not have stomach. Then how does it gain its nutrition?

10.    Name the glands that are associated with digestive system of man.

11.    Explain the process of digestion of food in mouth, stomach and small intestine.

12.    Draw a diagram of human alimentary canal and label on it :

         Oesophagus, Gallbladder, Liver, Pancreases

13.    Explain the statement : Bile does not contain any enzyme but it is essential for digestion.

14.    What is the function of liver in human body?

15.    Write the steps involved in nutrition in amoeba.