Assignment

Dear students, since we have covered the entire chapter life processes, here are some practice questions for you to write in your notebook. This will help you in revising for your exams!!!!

Worksheet   SCIENCE CLASS 10    

LIFE PROCESSES

1) What are the final products of carbohydrates, proteins and fats after their digestion.

2) Differentiate between a) saprophytic and parasitic nutrition

                                          b) photosynthesis and respiration

3) How is pH maintained in the stomach and small intestine?

4)  State the role and functions of :(i) blood and (ii) lymph in human transport system.

5) Write two differences between autotrophic and heterotrophic nutrition.

6) Why do we feel potato sweet after chewing it for long time in mouth?

7) Define excretion ? How do unicellular organisms remove their wastes?

8)  Write two differences between Aerobic and Anaerobic Respiration.

9)  How is urine produced?

10)  Name two excretory products other than O₂ and CO₂ in plants.

   

11)  Why does a sportsman get muscular cramps when he runs?

12) Write two major components of human urine.

13)  Enumerate the events that actually happen during the process of photosynthesis.

14) Name the enzyme found in saliva. State the role of saliva in the digestion of food. 

15)   Leaves of a healthy potted plant were coated with vaseline to block the stomata. Will this plant remain healthy for long ? State three reasons for your answer. 

16)  What are the common features of all respiratory organs?

17) Name the glands associated with the digestive system in humans.     Name their secretion and functions also. 

18) What is emulsification of fats?

19) How is food stored in plants and animals?

20) Name the substance that is oxidized in the body during respiration.