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Smaller lipid soluble molecule diffuese ...

Smaller lipid soluble molecule diffuese faster through cell membrane but the movemnet of hydrophilic substnces are facilitated by certain transporters which are chemically…………..

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Smaller, lipid soluble diffuse fater through cell membrane, but the movement of hyfrophilic substances is facilitated by certain transporters which are chemically

Since DNA is a hydrophilic molecules, it cannot pass through cell membranes. Why ?

Carrier molecules facilitating transport across cell membrane are

Name the macromolecule which is used as a carrier for the transport of materials across the cell membrane in facilitated transport.

Which of the following features is not true for facilitated transport across the cell membrane ?

Read the following statements carefully - (A) The lipid component of the plasma membrane mainly consists of phosphoglycerides. (B) Polar molecules can pass through the lipid bilayer of the plasma membrane, therefore they do not require carrier proteins to facilitate their transport. (C ) The secondary wall is capable of growth and it is formed on the outer side of the primary wall. (D) Quasifluid nature of lipid enables the lateral movement of proteins within the overall lipid bilayer of the plasma membrane. (E) Middle lamella glues the different neighbouring cells together. How many statements are incorrect?

......... can not pass through the lipid bilayer, they require a carrier protein of the membrane to facilitate their transport across the membrane

MODERN PUBLICATION-TRANSPORT IN PLANTS-NCERT EXEMPLAR PROBLEMS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Smaller lipid soluble molecule diffuese faster through cell membrane b...

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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 in which water diffuses across ...

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  4. A flowering plant is planted in an earthern pot, and irrigated. Urea i...

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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. Identity 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 between apoplast and symplast pathways of water movement...

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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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