9. Describe the process of water transport in plants from the roots to the leaves. What roles do xylem, osmosis, and transpiration play in this process? Discuss how environmental factors can affect water transport in plants.
9. Describe the process of water transport in plants from the roots to the leaves. What roles do xylem, osmosis, and transpiration play in this process? Discuss how environmental factors can affect water transport in plants.
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:9. Describe the process of water
transport in plants from the roots to
the leaves. What roles do xylem,
osmosis, and transpiration play in this
process? Discuss how environmental
factors can affect water transport in
plants.
1.
2.
3.
0088
Doo
ooooooo
Transpiration draws
water from the leaf.
Cohesion and adhesion
draw water up the xylem.
Negative water potential
draws water into the root.
Mesophyll
cells
Xylem
Stoma
Xylem
Root hairs
Soil particle
Water molecule
Xylem
Low
Water potential gradient
High
Atmosphere:
--100 MPa
Leaf at tip of tree:
--1.5 MPa
Stem: -0.6 MPa
Root cells: -0.2 MPa
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