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List four conditions required for effici...

List four conditions required for efficient gas exchange in an organism.

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Large surface area for easy gas exchange.
Fine and delicate surface for easy exchange of oxygen and carbon dioxide.
Moist - air sacs are moist with mucus so that gas can dissolve before diffusion.
Rich in blood capillaries so that large volume of gases can be exchanged.
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ZEN PUBLICATION-LIFE PROCESSES-ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER [SA] TYPE 1 QUESTIONS)
  1. Salt intake in our diet has to be controlled. Why?

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  2. Why is there a difference in the rate of breathing between aquatic org...

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  3. List four conditions required for efficient gas exchange in an organis...

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  4. In the experiment "To prepare a temporary mount of a leaf peel to show...

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  5. In the experimental set up "carbon dioxide is given out during respira...

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  6. A student is observing temporary mount of leaf peel under the microsco...

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  7. Draw the diagram showing opened stornata. Label the following parts: ...

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  8. Write four sequential steps of the procedure of the experiment "Prepar...

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  9. In the experimental set-up to show that "the germinating seeds give ou...

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  10. List in tabular form two differences between pepsin and trypsin.

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  11. List four precautions in proper sequence which we observe while prepar...

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  12. A student has set up an apparatus to show that "CO(2) is released duri...

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  13. Explain the ways in which glucose is broken down in absence or shortag...

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  14. State two functions performed by bile juice.

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  15. Mention the site of complete digestion in our body. Name the end produ...

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  16. What are enzymes? Name any one enzyme of our digestive system and writ...

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  17. Why is it necessary to separate oxygenated and deoxygenated blood in m...

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  18. Leaves of a healthy potted plant were coated with vaseline. Will this ...

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

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  20. In the experimental set-up shown, a] Name the material X filled ...

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