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In a passive transport across a membrane...

In a passive transport across a membrane. When two protein molecules move in opposite direction and independent of each other, it is called as ...... .

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Antiport This process facilitates transport of molecules in both the directions across the membrane and their movement is independent of each other.
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Fill in the blands: (a) Some carrier of transport protenis allow diffusion only if two types of molecules move together. In ..... 1 ...... Both molecules, cross the membrane in the same directions, in ..... 2 ...... They move in opposite directions. (b) When a molecule moves across a membrane independent of other molecules, the process is called .... 3 .....

NCERT EXEMPLAR-TRANSPORT IN PLANTS-Very Short Answer Type Questions
  1. Smaller, lipid soluble diffuse fater through cell membrane, but the m...

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  2. In a passive transport across a membrane. When two protein molecules m...

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  3. Osmosis is a special kind of diffusion, through which water diffuses a...

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  4. A flowering plant is planted in an earthen pot and irrigated. Urea is ...

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  5. Absorption of water from soil by seeds increases the "" thus helping s...

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  6. Water moves up against gravity and even for a tree of 20mheight the ti...

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  7. The plant cell cytoplasm is surrounded by both cell wall and cell memb...

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  8. The C(4) plants are twice as efficient as C(3) plants in terms of fixi...

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  9. Movement of substances in xylem is unidirection while in phloem it is ...

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  10. Indentify the process occurring in I, II, and III

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  11. Given below is a table. Fill in the gaps.

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  12. Define water potential and solute potential.

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  13. Why is solute potential always negative ? Explain Psi(w)=Psi(s)+Psi(p)...

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  14. An onion peel was taken and (a) placed in salt solution for five min...

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  15. Differentiate apoplast and symplast pathways of water movement. Which ...

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  16. How does most of the water moves within the root ?

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  17. Give the location of casparian strip and explain its role in the water...

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  18. Differentiate between guttation and transpiration.

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  19. Transpiration is a necessary evil in plants. Explain

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  20. Describe briefly the three physical properties of water which helps in...

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