BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 39, Problem 4A
Which of the following defects would prevent auxin-induced gene expression?
a. ARF transcription factor is unable to bind Aux/IAA proteins.
b. TIRI has a defect in its auxin binding site.
c. Aux/IAA proteins have a defect that prevents them from binding ubiquitin, but they still can bind the ARF transcription factor.
d. Both b and c are correct.
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A plant lacking the WOODEN LEG gene will likely
a. be incapable of transporting water to its leaves.
b. lack xylem and phloem.
c. be incapable of transporting photosynthate.
d. All of the choices are correct.
Which hormone can regulate guard cells?
Select one:
a.
ethylene
b.
abscisic acid
c.
gibberellin
d.
cytokinin
e.
auxin
What did Went's experiments with the gelatin block demonstrate?
A. Plants cannot be induced to bend during growth unless they are exposed to an indirect source of light.
B. Light induces the coleoptile to produce a diffusible substance that moves to the growing region of a plant where it stimulates cells to elongate.
C. Gelatin can enhance the movement of a soluble factor from the growing region of a plant to the coleoptile where it accelerates growth.
D. When a plant tip is removed from a growing plant, the plant acquires the ability to bend toward the light
Chapter 39 Solutions
BIOLOGY
Ch. 39.1 - Compare the pigments phytochrome and chlorophyll.Ch. 39.1 - List growth responses influenced by phytochrome.Ch. 39.1 - Prob. 3LOCh. 39.2 - Prob. 1LOCh. 39.2 - Prob. 2LOCh. 39.3 - Prob. 1LOCh. 39.3 - Prob. 2LOCh. 39.3 - Prob. 3LOCh. 39.4 - Prob. 1LOCh. 39.4 - Prob. 2LO
Ch. 39.4 - Identify the types of biological molecules that...Ch. 39.5 - Discuss properties of hormones.Ch. 39.5 - Prob. 2LOCh. 39.5 - Prob. 3LOCh. 39 - Prob. 1DACh. 39 - Prob. 1IQCh. 39 - Prob. 2IQCh. 39 - Propose a mechanism to explain how seedlings could...Ch. 39 - Which of the following is stimulated by blue...Ch. 39 - Prob. 2UCh. 39 - Prob. 3UCh. 39 - Prob. 4UCh. 39 - Which of the following does NOT happen as a seed...Ch. 39 - Dwarf mutants can sometimes be induced to grow...Ch. 39 - Prob. 1ACh. 39 - If you were to plant a de-etiolated (det2) mutant...Ch. 39 - Prob. 3ACh. 39 - Which of the following defects would prevent...Ch. 39 - You have come up with a brilliant idea to stretch...Ch. 39 - You have identified a mutant Arabtdopsis plant...Ch. 39 - Which of the following might not be observed in a...Ch. 39 - Prob. 1SCh. 39 - Prob. 2SCh. 39 - The current model for gravitropism suggests that...Ch. 39 - Prob. 4S
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