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Question

Transport of sugar in sieve tube occur in the form of

A
monosaccharide
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B
Sucrose
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C
Glucose
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D
Reducing sugar
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Solution

The correct option is B Sucrose
It is the most accepted mechanism for translocation of Sugars in higher plants. It occurs in the following steps. The glucose prepared in the leaves is converted into sugar. The sugar in the form of sucrose is moved into the companion cells and then into the living phloem sieve tube cells by active transport.
So, the correct option is 'Sucrose'.

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