Question:

Translocation in plants result from???

by  |  earlier

0 LIKES UnLike

a. a difference in water potential between a sugar source and a sugar sink.

b. transpiration.

c. cohesion-adhesion.

d. active transport by sieve-tube members.

e. active transport by tracheid and vesel elements.

 Tags:

   Report

2 ANSWERS


  1. b. Transpiration (pull)


  2. d. active transport by sieve-tube members.

    This drives translocation - Cells in a sugar source "load" a sieve-tube element by actively transporting solute molecules into it. This causes water to move into the sieve-tube element by osmosis, creating pressure that pushes the sap down the tube. In sugar sinks, cells actively transport solutes out of the sieve-tube elements, producing the exactly opposite effect.

Question Stats

Latest activity: earlier.
This question has 2 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.