Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 37, Problem 3TYK
Summary Introduction
Introduction:
Auxin is a phytohormone responsible for stimulating the division and elongation of cells. It is also involved in root initiation and bud formation. It is also responsible for the production of other phytohormones when working in harmony with cytokinin. This hormone is synthesized in developing leaves, apical meristem, and developing an embryo. It affects the growing tissues present in all parts of the plant.
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Plant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs.
(b) Explain the role that auxin has in eliciting the plant’s response.
What is true about osmosis?
Select one:
a.
it is passive movement of water across a membrane
b.
it is an active process
c.
it must require special proteins
d.
it is the driving force for water movement from the root to the shoot
e.
it involves movement of water toward its highest concentration
Which of the following is NOT an accurate statement about the acid growth hypothesis?
Select one:
O A. Expansins are activated by high acidity in the cell wall
O B. It explains cell elongation in response to auxin
O C. Wedge- shaped expansin enzymes separate cross-linking polysaccharides from
microfibrils
O D. It proposes that auxin increases the activity of proton pumps in target cells
O E. Expansins cleave cross-linking polysaccharides
Next F
Chapter 37 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 37.1 - Prob. 1SBCh. 37.1 - Prob. 2SBCh. 37.1 - Prob. 3SBCh. 37.2 - Prob. 1SBCh. 37.2 - Prob. 2SBCh. 37.2 - Prob. 3SBCh. 37.3 - Prob. 1SBCh. 37.3 - Prob. 2SBCh. 37.4 - Prob. 1SBCh. 37.4 - Prob. 2SB
Ch. 37.4 - Prob. 3SBCh. 37 - Prob. 1TYKCh. 37 - Which is the correct pairing of a plant hormone...Ch. 37 - Prob. 3TYKCh. 37 - Prob. 4TYKCh. 37 - Prob. 5TYKCh. 37 - Prob. 6TYKCh. 37 - Prob. 7TYKCh. 37 - Prob. 8TYKCh. 37 - Prob. 9TYKCh. 37 - Prob. 10TYKCh. 37 - Prob. 11TYKCh. 37 - Prob. 12TYKCh. 37 - Prob. 13TYKCh. 37 - Prob. 14TYKCh. 37 - Prob. 15TYKCh. 37 - Prob. 17TYKCh. 37 - Prob. 1ITDCh. 37 - Prob. 2ITDCh. 37 - Prob. 3ITD
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