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(A) The protoplasmic streaming theory, proposed by $de 	ext{ } Vries$, suggests that the movement of solutes occurs through the streaming movement of

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(A) The protoplasmic streaming theory, proposed by $de 	ext{ } Vries$, suggests that the movement of solutes occurs through the streaming movement of the cytoplasm within the sieve tube elements. This cytoplasmic streaming facilitates the transport of sugars from one sieve tube element to the next through the sieve pores. However, it is important to note that the currently accepted mechanism for sugar translocation in plants is the $Munch$ Pressure Flow Hypothesis, which relies on active transport and osmosis.

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

According to the protoplasmic streaming theory, how is sugar translocated from one sieve tube to another?

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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

The function of companion cells is

During translocation of food,at the sink end (root cells),the sugar is used and excess water . . . . . . .

Who studied the effect of light on translocation?

Chemical analysis of phloem sap shows the presence of:

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