The source region in the pressure flow explanation of phloem transport is most often the ____.
A)root
B)flower
C)stem
D)leaf
E)soil

Question

Quizplus · Accepted Answer

The source region in the pressure flow explanation of phloem transport is most often the leaf. This is because the leaf is the site of photosynthesis, where sugars are produced. These sugars are then transported to the rest of the plant through the phloem.

The Source Region in the Pressure Flow Explanation of Phloem