As plants grow, they tend to align theirstems and roots along the direction of the gravitational field. This tendency, which is related to differential concentrations of planthormones known as auxins, is referred to as gravitropism. As an illustration of gravitropism, experiments show that seedlings placed inpots on the rim of a rotating turntable do not grow in the verticaldirection. Do you expect their stems to tilt inward—toward the axisof rotation—or outward—away from the axis of rotation?
As plants grow, they tend to align theirstems and roots along the direction of the gravitational field. This tendency, which is related to differential concentrations of planthormones known as auxins, is referred to as gravitropism. As an illustration of gravitropism, experiments show that seedlings placed inpots on the rim of a rotating turntable do not grow in the verticaldirection. Do you expect their stems to tilt inward—toward the axisof rotation—or outward—away from the axis of rotation?
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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As plants grow, they tend to align their
stems and roots along the direction of the gravitational field. This tendency, which is related to differential concentrations of plant
hormones known as auxins, is referred to as gravitropism. As an illustration of gravitropism, experiments show that seedlings placed in
pots on the rim of a rotating turntable do not grow in the vertical
direction. Do you expect their stems to tilt inward—toward the axis
of rotation—or outward—away from the axis of rotation?
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