(b) Describe the role of each component of water potential in regulating the activity of: (i) An expanding cell in a meristem (ii) A mature leaf mesophyll cell (iii) A mature leaf guard cell (iv) A mature xylem vessel

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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(b) Describe the role of each component of water potential in regulating the activity of:
(i) An expanding cell in a meristem
(ii) A mature leaf mesophyll cell
(iii) A mature leaf guard cell
(iv) A mature xylem vessel
Transcribed Image Text:(b) Describe the role of each component of water potential in regulating the activity of: (i) An expanding cell in a meristem (ii) A mature leaf mesophyll cell (iii) A mature leaf guard cell (iv) A mature xylem vessel
Expert Solution
Step 1: Water potential

Water potential is a unit used to describe the potential energy of moving water between two systems. Therefore, the disparity in potential energy between a given water sample and pure water is known as water potential in practical terms. The measurement of the water potential, therefore, combines the effects of solute concentration and pressure.

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