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Which of the following method of transpo...

Which of the following method of transport across a membrane does not involve a change in shape of transport protein ?

A

Facilitated diffusion

B

Simple diffusion

C

Active transport

D

`Na^(+)- K^(+)` pump

Text Solution

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The correct Answer is:
B
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ARIHANT NEET-TRANSPORT IN PLANTS -Chapter exercises A. Taking it together (Assorted Questions of the Chapter for Advanced Level Practice )
  1. The cell A has an osmotic potential of -20 bars and a pressure potenti...

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  2. The OP and TP of two pairs of cells A-B and X-Y are as under Cell ...

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  3. If cohesion-tension transpiration pull theory is correct, a break in w...

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  4. The process of guttation takes place

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  5. The protoplasmic streaming hypothesis for food translocation has not b...

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  6. If a cell A with DPD=5 bars is connected to cells B,C and D whose OP a...

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  7. The term Tensile strength represents that there is

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  8. Atmospheric pressure theory was rejected for the ascent of sap because

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  9. The main mechanism of determining the direction of short distance tran...

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  10. Which of the following method of transport across a membrane does not ...

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  11. A bottle filled with previously moistened Mustard seeds and water was ...

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  12. Which of the following is not true for carrier molecules involved in f...

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  13. The translocation of orgainc solutes through phloem is bidirectional b...

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  14. If a plant cell is placed in deionised water the water potential of th...

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  15. Which of the following statementis correct ?

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  16. How many of these events occur during stomatal opening in guard cells ...

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  17. Which of the following statement is correct concerning the flow of sap...

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  18. A mutant plant is unable to produce materials or precursors that form ...

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  19. It a cell with a solute potential of -0.2 Mpa and a pressure potential...

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  20. The concentration of solute in four cells is 0.5 M. They are placed in...

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