CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 31, Problem 3TYU
Summary Introduction
Introduction:
Charles Darwin along with Francis (son) had conducted some experiments in phototropism.
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The apical bud of a plant produces
which inhibits lateral bud growth through the process known as apical dominances.
Select one:
O a. Auxin
O b. Cytokinin
O c. Ethylene
O d. Gibberellin
O e. Abscisic Acid
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 cytokinins
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.
Chapter 31 Solutions
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
Ch. 31.1 - Prob. 1CCCh. 31.1 - WHAT IF? If a plant has the double mutation ctr...Ch. 31.1 - Prob. 3CCCh. 31.2 - If an enzyme in field-grown soybean leaves is most...Ch. 31.2 - WHAT IF? If a plant flowers in a controlled...Ch. 31.2 - MAKE CONNECTIONS Plants detect the quality of...Ch. 31.3 - Prob. 1CCCh. 31.3 - Prob. 2CCCh. 31.3 - Prob. 3CCCh. 31.4 - Prob. 1CC
Ch. 31.4 - Chewing insects mechanically damage plants and...Ch. 31.4 - Prob. 3CCCh. 31 - The hormone that helps plants respond to drought...Ch. 31 - Prob. 2TYUCh. 31 - Prob. 3TYUCh. 31 - Prob. 4TYUCh. 31 - Prob. 5TYUCh. 31 - Prob. 6TYUCh. 31 - DRAW IT Indicate the response of Arabidopsis to...Ch. 31 - Prob. 8TYUCh. 31 - FOCUS ON EVOLUTION As a general rule,...Ch. 31 - FOCUS ON INTERACTIONS In a short essay (100-150...Ch. 31 - Prob. 11TYU
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- 1) You exposed a plant to a light that shines on the right side of a plant. Choose the statement that best describes the plant growth towards the light. A. Light destroys auxin, and thus the shaded side grows faster. B. Auxin moves from the lighted side to the shaded side where it stimulates growth. C. Auxin moves from the shaded side to the lighted where it stimulates growth. D. Auxin moves from the shaded side to the lighted side where it inhibits growth. 2)Select a plant hormone that responsible in inhibiting protein breakdown and stimulating RNA synthesis. A. Abscisic acid B. Ethylene C. Cytokinins D. Auxins 3)Select the following organs that produces pollen grains. A. Anther B. Style C. Filament D. Ovule 4)Identify the best description of oviparity. A. Organism that gives birth to offsprings. B. Organism that forms the…arrow_forwardWhich 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 abscissionarrow_forwardExplain the concept of phototropism and how auxin is involve in this process. Give some examples.arrow_forward
- Which of the given plant hormone will be more abundant in dormant buds and seeds? a.Gibberellin b.ABA c.Ethylene d.Auxinarrow_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
- Gaseous hormones are able to enter cells without requiring specialmembrane transporter. Which of the major plant hormones is adiffusible gas?a. auxin b. gibberellin c. cytokinin d. ethylene e. abscisic acidarrow_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_forwardExamples of plant hormones includea. cyclic AMP, IP3, and calcium ions.b. calcium, CDPKs, and DELLA proteins.c. auxin, cytokinin, and gibberellin.d. cryptochrome, phototropin, and phytochrome.e. statoliths, pulvini, and aerenchyma.arrow_forward
- What is the problem with weed seed? Select one: a. other color b. bad smell c. low moisture content d. toxicarrow_forwardWhich of the following may stimulate the growth of the roots in plant cuttings? Select one: a. The use of auxins. b. A decrease in soil minerals. c. A decrease in enzymes. d. The use of endocrine secretions.arrow_forwardAuxin causes the bending of shoot toward light by?A. Causing cells to shrink on the dark side of the shootB. Causing cells to shrink on the lighted side of the shootC. Inhibiting growth on the dark side of the shootD. Stimulating growth on the lighted side of the shootE. Stimulating growth on the dark side of the shootarrow_forward
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