Identify the following process A from the giv | vedclass

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(C) The process shown in the figure represents the Pressure Flow Hypothesis or Mass Flow Hypothesis of phloem transport.In the source (leaf),sugar is

Vedclass · Accepted Answer

Sugar enters sieve tubes,water follows by osmosis

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(C) The process shown in the figure represents the Pressure Flow Hypothesis or Mass Flow Hypothesis of phloem transport.In the source (leaf),sugar is produced via photosynthesis and is actively loaded into the sieve tube elements of the phloem.This increase in solute concentration inside the sieve tubes decreases the water potential,causing water from the adjacent xylem to enter the sieve tubes by osmosis.This process increases the turgor pressure in the sieve tubes at the source,which drives the flow of sugar solution towards the sink (where turgor pressure is lower).Therefore,process $A$ represents the loading of sugar into the sieve tubes,which is followed by the entry of water via osmosis.

Identify the following process $A$ from the given figure:

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