Q.1. True/False
(i) During heavy exercise the breathing rate of a person slows down.
(ii) Gills are well supplied with blood vessels for exchange of gases.
(iii) Plants carry out photosynthesis only during the day and respiration only at night.
(iv) Frogs breathe through their skins as well as their lungs.
(v) The fishes have lungs for respiration.
(vi) The size of the chest cavity increases during inhalation.
Q.2. Fill in the blanks.
(i) In cockroaches, air enters the body through ____.
(ii) During heavy exercise, we get cramps in the legs due to the accumulation of ____.
(iii) Normal range of breathing rate per minute in an average adult person at rest is ____.
(iv) During exhalation, the ribs move ____.
(v) Breathing is a part of the process of ____.
Q.3. What forms the floor of the chest cavity?
Q.4. What is produced during anaerobic respiration in muscles that causes cramps?
Q.5. Lactic acid is produced during anaerobic respiration in muscles that causes cramps.
Q.6. What happens during exhalation?
Q.7. When and where does anaerobic respiration occur in humans?
Q.8. Why do we get relief from cramps after a hot water bath or a massage?
Q.9. What is cell?
Q.10. Name the respiratory organ of birds.
Q.11. What are the end products of anaerobic respiration?
Q.12. What is cellular respiration?
Q.13. What role does hair present in the nasal cavity play in the process of respiration?
Q.14. Why do we get muscle cramps after heavy exercise?
Q.15. What happens during inhalation?
Q.16. How does exchange of gases take place in insects?
Q.17. What is the percentage of oxygen and carbon dioxide in inhaled and exhaled air?
Q.18. How do we breathe?
Q.19. What are some common uses of Yeast?
Q.20. How do earthworms breathe?
You can find Worksheets Solutions here: Worksheet Solutions: Respiration in Organisms
111 videos|246 docs|28 tests
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1. What is respiration in organisms? |
2. How do organisms breathe? |
3. What is the difference between aerobic and anaerobic respiration? |
4. How does respiration take place in plants? |
5. Why is respiration important for living organisms? |
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