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Micronutrients

What is the n...

Question

What is the name of the process whereby sugar enters sieve tubes by means of active transport?

A

phloem-loading

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B

guttation

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C

bulk flow

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D

cohesion

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Solution

The correct option is A
phloem-loading

This is also called as vein loading.

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Similar questions

Water enter into sieve tubes containing sugar by the process of ___.

Sucrose enters a phloem sieve-tube cell because of:

Q. During phloem transportation sugar is moved in form of sucrose in to the companion cells and them into the living phloem sieve tube cells by -

Q. Water enters the sieve tubes by the process called .

Q. Arrange the following events in a correct order that explains the mass flow of materials in the phloem.

(I) Water diffuses into the sieve tube elements.
(II) Cells of the leaves produce sugar by photosynthesis.
(III) Solutes are actively transported into the sieve elements.
(IV) Sugar is transported from cell to cell in the leaf.
(V) Sugar moves down the stem.

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