Q. When sugars enter sieve tubes, water flows by osmosis, resulting in
A) Water potential
B) Osmotic gradient
C) Turgor pressure
D) DPD
Explanation
The movement of sugars in the phloem begins at the source, where sugars are loaded (actively transported) into a sieve tube. Loading of the phloem steps up a water potential gradient that facilitates the mass movement in the phloem
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.