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Question

What is the function of P-protein?


A
To carry out photosynthesis in leaves
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B
To carry out transport of organic solutes through phloem
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C
Passive protein present in phaseolus seeds
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D
The protein of pollen grains
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Solution

The correct option is A To carry out transport of organic solutes through phloem
P-proteins have been reported in sieve tube members. They can be the dispersive or non-dispersive type. A variety of functions from wound healing to transportation have been suggested for P-proteins. Nothing is well established but transport of organic solutes appears to be their most important function at least in the immature stage.
So, the correct answer is option B.

Biology

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