The girdling experiment proves that ......... | vedclass

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Question

(D) The girdling experiment involves removing a ring of bark (phloem) from the stem of a plant. Since the phloem is responsible for the translocation

Vedclass · Accepted Answer

food is transported downwards in plants

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(D) The girdling experiment involves removing a ring of bark (phloem) from the stem of a plant. Since the phloem is responsible for the translocation of organic food (sucrose) from the leaves to the roots,removing this tissue blocks the downward movement of food. As a result,the portion of the stem above the girdle swells due to the accumulation of food,while the roots eventually die due to a lack of nutrients. Therefore,this experiment proves that phloem is the tissue responsible for the downward translocation of food in plants.

Column-$I$	Column-$II$
$i$. Radial translocation	$a$. Translocation of food from phloem to cortex
$ii$. Tangential translocation	$b$. Translocation of food from phloem to pith
$iii$. Longitudinal translocation	$c$. Translocation of food from source to sink

The girdling experiment proves that $............$.

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Match Column-$I$ with Column-$II$.
Column-$I$ Column-$II$
$i$. Radial translocation $a$. Translocation of food from phloem to cortex
$ii$. Tangential translocation $b$. Translocation of food from phloem to pith
$iii$. Longitudinal translocation $c$. Translocation of food from source to sink

Which of the following theories explains bidirectional translocation?

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