Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Textbook Question
Chapter 39, Problem 5TYK
Which of the following situations would most likely stimulate the development of axillary buds?
- a. a large quantity of auxin traveling down from the shoot and a small amount of cytokinin produced by the roots
- b. a reduction of auxin traveling from the shoot and thus a reduced production of strigolactone
- c. a 1:1 ratio of gibberellins to auxin
- d. the absence of cytokinins caused by the removal of the terminal bud
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Which of the following statements is false?a. Auxin and gibberellin promote stem elongation.b. Cytokinin triggers growth of lateral buds.c. Abscisic acid promotes water loss and dormancy.d. Ethylene promotes fruit ripening and abscission
. Charles and Francis Darwin discovered that(A) auxin is responsible for phototropic curvature.(B) red light is most effective in shoot phototropism.(C) light destroys auxin.(D) light is perceived by the tips of coleoptiles.
Pruning plants can promote lateral stems and increased plant biomass by _____________.
Select one:
a.
suppressing cytokinin transport
b.
suppressing auxin transport
c.
promoting cytokinin transport
d.
promoting auxin transport
Chapter 39 Solutions
Biology - Study Guide
Ch. 39 - Prob. 1IQCh. 39 - What are the important steps in the transduction...Ch. 39 - What is the plans growth response? What types of...Ch. 39 - Explain how phytochrome can also indicate the...Ch. 39 - What are free-running periods?Ch. 39 - Indicate whether a short-day plant and a long-day...Ch. 39 - Prob. 7IQCh. 39 - Prob. 8IQCh. 39 - Prob. 9IQCh. 39 - Prob. 1SYK
Ch. 39 - Develop a concept map to illustrate your...Ch. 39 - Prob. 3SYKCh. 39 - Prob. 1TYKTCh. 39 - Prob. 2TYKTCh. 39 - Prob. 3TYKTCh. 39 - Prob. 4TYKTCh. 39 - Prob. 5TYKTCh. 39 - Prob. 6TYKTCh. 39 - Prob. 7TYKTCh. 39 - The body form within a species of plant may vary...Ch. 39 - Prob. 2TYKCh. 39 - Small molecules in the cell that amplify signals...Ch. 39 - According to the acid growth hypothesis, a. auxin...Ch. 39 - Which of the following situations would most...Ch. 39 - Prob. 6TYKCh. 39 - Prob. 7TYKCh. 39 - Prob. 8TYKCh. 39 - Prob. 9TYKCh. 39 - Prob. 10TYKCh. 39 - Prob. 11TYKCh. 39 - Prob. 12TYKCh. 39 - Prob. 13TYKCh. 39 - Prob. 14TYKCh. 39 - Prob. 15TYKCh. 39 - Which of the following is not a plant defense...Ch. 39 - Prob. 17TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Under which of the following conditions would pollen from an S2S5 plant successfully pollinate an S1S5 flower? a. Using pollen from a carpelate flower to fertilize a staminate flower would be successful. b. If the plants used gametophytic self-incompatibility, half of the pollen would be successful. c. If the plants used sporophytic self-incompatibility, half of the pollen would be successful. d. Pollen from an S2S5 plant can never pollinate an S1S5 flower.arrow_forwardRoot cells exhibit positive gravitropism with the help ofa. auxin in the root cells.b. amyloplasts in root cells.c. exposure to sunlight.d. a nearby substrate.arrow_forwardIf you exposed seeds to a series of red light versus far-red light treatments, which of the following exposure treatments would result in seed germination? a. Red; far-red b. Far-red; red c. Red; far-red; red; far-red; red; far-red; red; far-red d. Both a and c are correct.arrow_forward
- Which combination of hormones is best for promotingthe formation of lateral roots from pericycle?a. A high auxin level and low cytokinin levelb. A low auxin level and high cytokinin levelc. A high level of auxin and cytokininarrow_forwardWhich of the following is false about the phytochrome protein?a. There are two convertible forms.b. It primarly absorbes blue wavelengths of light.c. It is involved in seed germination.d. It is involved in plant sensing of spacing.arrow_forwardWhich of the following statements about phototropism is/are not true? A. Red light is the most effective light wavelength for positive phototropism of plants. B. Higher auxin concentration on the lighted side causes that side to elongate more than the non illuminated side. C. Phototropins are the only effective light receptors in phototropism. D. Phototropism decreases the plant's ability to enhance photosynthetic capacity. E. All of the above F. None of the abovearrow_forward
- Which of the following is True?a. Ethylene stimulates abscission layers to form.b. Abscisic acid causes abscission layers to form.c. Ethylene is sometimes sprayed on flowers to keep them fresh.d. Abscisic acid stimulates seed germination.arrow_forwardCan you answer all the parts to this question please In shoot apical meristems, the peripheral zone (PZ) genetic program maintains indeterminacy and allows lateral primordia initiation. (a) Explain how the PZ genetic program control (1) meristem maintenance, (2) organ separation, and (3) organ differentiation/leaf primordia outgrowth using the following keywords: KNOX genes, cytokinins, gibberellin, auxin, CUC, and AS1. (b) Explain how this genetic program is used in the formation of compound leaves. (c) Please use KNOX PZ genetic module as an example to explain process homology during compound leaf evolution.arrow_forwardAuxin, like many substances, can be transported through the phloem; however, there is a second mechanism that exists just for auxin transport. What is it?arrow_forward
- Identify the wrong match a.Senescence —Both auxin and ABA promote it b.Apical dominance — Auxin induces and Cytokinin counteracts c.Dormancy — Both ethylene and GA break it d.Callus differentiation — Auxin and cytokininsarrow_forwardOne similarity about the chlorophyll content between the low and moderate light seedlings is: A. Both seedling groups have about the same amount of chlorophyll content for the first 12 hours of growth. B. Both seedling groups have the exact same amount of chlorophyll content for the first 8 hours of growth. C. Both seedling groups have the exact same amount of chlorophyll content for the first 3 to 5 hours of growth. D. Both seedling groups have the exact same amount of chlorophyll content for the last 24 hours of growth.arrow_forwardA plant mutant that shows normal gravitropic bending butdoes not store starch in its plastids would require a reevaluationof the role of _____________ in gravitropism.(A) auxin(B) calcium(C) statoliths(D) differential growtharrow_forward
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