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What are stomata? Give two functions of ...

What are stomata? Give two functions of stomata.

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The two functions of stomata are: (i) Transpiration is possible through stomata, i.e., excess water loss from the plant. (ii) Absorption of water from the roots, when there is loss of water from the stomata creates an upward pull. (iii) Exchange of gases.
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LAKHMIR SINGH & MANJIT KAUR-TRANSPORT IN ANIMAL AND PLANTS-EXERCISE
  1. Name the process which causes water to be pulled upwards through xylem...

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  2. Does transpiration serve any useful function in the plants? Explain.

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  3. What are stomata? Give two functions of stomata.

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  4. How do water and minerals move from the roots of a plant to the leaves...

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  5. How does the food move from the leaves to all other parts of a plant?

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  6. State the function of circulatory system. Name the various parts of th...

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  7. What is meant by ''excretion'' ? What are the various waste materials ...

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  8. What are the various organs of the human excretory system? Draw a diag...

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  9. Why do plants need a transport system? Name the two types of vessels (...

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  10. Explain how, water moves from the soil particles to the xylem vessels ...

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  11. The cells in our blood which destroy disease-causing germs, are:

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  12. A blood vessel which carries blood back to the heart is :

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  13. The wave of expansion of an artery when blood is forced into it is cal...

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  14. In plants, water is transported through

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  15. Water absorption through roots can be increased by keeping the potted ...

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  16. The component of blood which makes chemicals known as antibodies is :

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  17. If a patient is put on dialysis, he is most likely suffering from a se...

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  18. Blood is pumped from the heart to the entire body by the:

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  19. The blood leaving the tissues becomes richer in

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  20. What prevents backflow of blood inside the heart during contraction?

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