Sugar transport from leaves to roots occurs by_______ . a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. evaporation, tension, and cohesion

Sugar transport from leaves to roots occurs by_______ . a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. evaporation, tension, and cohesion

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter26: Plant Nutrition And Transport

Section: Chapter Questions

Problem 13SA

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Concept explainers

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.

Question

Sugar transport from leaves to roots occurs by_______ .
a. a pressure gradient inside sieve tubes
b. different solutes at source and sink regions
c. the pumping force of xylem vessels
d. evaporation, tension, and cohesion

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