All of the following are part of the mechanism for phloem transport except:
A) a pressure gradient.
B) osmosis.
C) active transport of sugar.
D) transpiration.

Question

Quizplus · Accepted Answer

Transpiration is a process related to the movement of water vapor from the plant to the atmosphere, primarily through the stomata in the leaves, and is not directly involved in the mechanism of phloem transport. Phloem transport involves the movement of sugars and other metabolic products down a pressure gradient, facilitated by osmosis and active transport of sugars into the phloem cells.

All of the Following Are Part of the Mechanism for Phloem