question_answer

What mechanism explains the movement of sucrose from source to sink?

A) Evaporation of water and active transport of sucrose from sink.

B) Osmotic movement of water into the sucrose loaded sieve tube cells creating a higher hydrostatic pressure into the source than in the sink.

C) Tension created by differences in hydrostatic pressure in the source and sink.

D) Active transport of sucrose through the sieve tube membranes driven by proton pump.