REVISION QUESTIONS
1. Name the breathing organs in
a) cockroach b) frog c) plant d) earthworm
2. Draw schematic diagram of circulation of blood
3. Give one function each of W.B.C and Platelets
4. a ) Write three differences between aerobic and anaerobic respiration.
b) Why do we get muscle cramps? How can you get relief from them?
b) Arrange these activities from lowest breathing rate to highest?
Jumping, reading , running , sleeping
c) Write two differences between exhaled and inhaled air
6.The thinnest blood vessel is
a) Vein b) artery c) capillary d) platelet
7.Two methods by which rusting of iron can be prevented
8. Describe the function of heart?
9. Complete chemical equations:-
(a) Glucose ( in Presence of oxygen)--------------->
(b) Glucose (Absence of oxygen ) -------------->
10. When baking soda is mixed with lemon juice, bubbles are formed with the evolution of gas. What type of change is it?
11.Give technical term for:-
a) Muscular floor of chest cavity.
b) Air tubes of insects.
c) The opening through which we inhale.
12.Explain what will happen if there are no platelets in the blood?
13. Define transpiration. Does it serve any useful function in the plants?(any two)
14. Single largest artery is -------------------.
15. Structural and functional unit of kidney are ________________.
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