Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 38.2, Problem 4LO
Summary Introduction
To list: The several ways by which each of these hormones such as auxins, gibberellins, cytokinins, ethylene, abscisic acid, and brassinosteroids affect plant growth and development.
Introduction: Plant hormones are chemical molecules produced by plants in extremely low concentration for regulating growth and development. There are five major hormones involved in the growth process. They are auxin, gibberellin, ethylene, abscisic acid, and cytokinin. Each of these hormones has its own functions at specific locations. The presence of these hormones in a definite amount is very essential for the normal growth and development of the plant.
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list six important types of plant hormones?
Last Valentine's day, an 18-year old girl received a bouquet of flowers from the boy that she likes. She wanted to keep the cut flowers for a few more days so she asked for your advice on how she can retain the freshness of the flowers. Given this situation, what specific plant hormone would you recommend to her?
a. abscisic acid
b. auxin
c. ethylene
d. gibberellin
e. cytokinin
Examples 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.
Chapter 38 Solutions
Biology (MindTap Course List)
Ch. 38.1 - Prob. 1LOCh. 38.1 - Prob. 1CCh. 38.1 - Prob. 2CCh. 38.2 - Prob. 2LOCh. 38.2 - Prob. 3LOCh. 38.2 - Prob. 4LOCh. 38.2 - Prob. 1CCh. 38.2 - Prob. 2CCh. 38.2 - Which hormones are involved in each of the...Ch. 38.3 - Explain how varying amounts of light and darkness...
Ch. 38.3 - Prob. 6LOCh. 38.3 - Prob. 7LOCh. 38.3 - Prob. 8LOCh. 38.3 - Prob. 1CCh. 38.3 - Prob. 2CCh. 38.3 - Prob. 3CCh. 38.4 - Prob. 9LOCh. 38.4 - Prob. 1CCh. 38 - Prob. 1TYUCh. 38 - Prob. 2TYUCh. 38 - Prob. 3TYUCh. 38 - Prob. 4TYUCh. 38 - The stress hormone that helps plants respond to...Ch. 38 - Prob. 6TYUCh. 38 - Prob. 7TYUCh. 38 - Pfr, the active state of _______________, forms...Ch. 38 - Prob. 9TYUCh. 38 - Which signaling molecule triggers the release of...Ch. 38 - Prob. 11TYUCh. 38 - PREDICT State whether flowering in a short-day...Ch. 38 - PREDICT If you transplanted the short-day plant...Ch. 38 - EVOLUTION LINK What adaptive advantages are...Ch. 38 - Prob. 15TYUCh. 38 - Prob. 16TYUCh. 38 - Prob. 17TYU
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- The stress hormone that helps plants respond to drought is (a) auxin (b) gibberellin (c) cytokinin (d) ethylene (e) abscisic acidarrow_forwardMatch the observation with the main hormones.. ___ ethylene a. Your cabbage plants bolt they form elongated flowering stalks. ___ cytokinin b. The potted plant in your room is leaning toward the window ___ auxin c. Lateral buds are sprouting. ___ gibberellin d. The seeds of your roommates marijuana plant do not germinate no matter what he does to them. ___ abscisic acid e. The last of your apples is getting really mushy ___ nitric oxide f. Your lettuce plants develop brown spots on their leaves.arrow_forwardGreenhouse-grown tomato seedlings are often brushed by hand to simulate wind. This causes seedlings to grow slower, thicken stems, & resist mechanical wind damage when planted in the field. Which hormone is responsible? Auxin Salicylic acid Gibberellin Abscisic acid cytokinin Ethylenearrow_forward
- What are the precursor molecules for plant hormones?arrow_forward• On a commercial scale, enhancing the level of _______ (hormone) can help to speed up fruit ripening. • What measure do fruit producers take to slow down fruit ripening that is caused by natural ethylene?• What is a ‘triple response’. Which plant hormone initiates a triple response? • A change in the ratio of ethylene to auxin controls abscission. In the autumn, the amount of __________ decreases, rendering the cells of the abscission layer more sensitive to __________.arrow_forwardIf a farmer wanted less tightly packed clusters of grapes, he would most likely spray the immature bunches with which of the following hormones? cytokinins gibberellins auxin abscisic acidarrow_forward
- When you prune shrubs to make them “bushier”—that is, to prevent apical dominance—you are affecting the distribution and action of which plant hormone? (a) auxin (b) jasmonic acid (c) salicylic acid (d) ethylene (e) abscisic acidarrow_forwardDescribe the Function of Plant hormonesarrow_forwardWhich plant hormone mediates the seasonal abscission of fruits and leaves? gibberellin ethylene auxin abscisic acid cytokininarrow_forward
- The summer is not optimal for grape growing and you're searching in your memory for something regarding plant hormones. Explain 2 ways you could utilize plant hormones (choose from auxin, ethylene, cytokinin, gibberellin, abscisic acid, salicylic acid, jasonic acid) to compensate for a problem during growing. For each way:arrow_forwardGaseous 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 these is caused by the effects of auxin? (choose all that apply) 1.Maintaining apical dominance 2.suppressing lateral bud growth 3. stimulating root growth in stem leaf buds 4.stimulating root elongation 5. preventing seed germination 6.phototropismarrow_forward
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