According to the pressure flow hypothesis:A. | vedclass

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(C) According to the pressure flow hypothesis:$1$. Phloem loading at the source creates a hypertonic condition in the sieve tubes by increasing the so

Vedclass · Accepted Answer

$A$ and $B$ are correct

Vedclass · Answer

(C) According to the pressure flow hypothesis:$1$. Phloem loading at the source creates a hypertonic condition in the sieve tubes by increasing the solute concentration,which draws water from the adjacent xylem via osmosis. This statement $(A)$ is correct.$2$. The resulting increase in turgor pressure creates a water potential gradient that facilitates the mass flow of sap from the source to the sink. This statement $(B)$ is correct.$3$. Phloem unloading at the sink is an active process that requires energy $(ATP)$ to move sugars out of the sieve tubes. Therefore,statement $(C)$ is incorrect because it describes unloading as a passive process.

According to the pressure flow hypothesis:
$A.$ Phloem loading produces a hypertonic condition in the sieve tubes.
$B.$ Water potential gradient facilitates the mass movement in the phloem.
$C.$ Phloem unloading is a passive process.

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According to the pressure flow hypothesis:$A.$ Phloem loading produces a hypertonic condition in the sieve tubes.$B.$ Water potential gradient facilitates the mass movement in the phloem.$C.$ Phloem unloading is a passive process.