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Acts as buffer and helps in regulatio...

_____Acts as buffer and helps in regulation of pH .

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SURA PUBLICATION-TRANSPORTATION IN PLANTS AND CIRCULATION IN ANIMALS-ADDITIONAL QUESTIONS & ANSWER ( FILL IN THE BLANKS : )
  1. platelets play an important role in clotting of blood .

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  2. form a clot at the site of injury and prevent blood loss

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  3. Acts as buffer and helps in regulation of pH .

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  4. are thick and elastic vessels that carry blood away from the h...

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  5. All arteries carry except the pulmonary artery .

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  6. are thin and non- elastic vessels that transport blood to the ...

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  7. Capillaries are about in diameter .

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  8. Food synthesized by the leaves are translocated to all parts of t...

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  9. is a type of diffusion in which a solid absorbs water and gets ...

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  10. The proteins which use energy to carry substances across the cell ...

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  11. Water form the root hair moves to the cortical cells by .

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  12. Stomma are in the day and at night .

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  13. The opening and clossing of the stomata is due to the change in...

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  14. Water evaporates from cells of leaves.

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  15. Roots hairs are the thin walled , extension of cells .

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  16. Transpiration cools the surface of the leaves by .

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  17. responsible for pushing water to smaller height of the stem .

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  18. Plants depend on from soil for its nutritional requirements.

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  19. Most minerals enter the root by absorption .

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  20. Cytoplasmic strands pass through the pores in the of phloem .

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