Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 30, Problem 3SQ
Summary Introduction
Concept introduction: Plant hormones or phytohormones are the chemical molecules produced by plant tissues in extremely low concentrations for regulating many cellular processes. These hormones are very essential for plants as they decide many different attributes necessary for their growth. The major characters determined by plant hormones are flowering, shedding of leaves, shoot and root elongation, ripening of fruits and abscission.
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Ethylene respond synergistically with another plant hormone ‘X’ for promoting shedding of leaves, flowers and fruits. The hormone ‘X’ can be used in agriculture for
a.Inducing fruit ripening
b.Increasing internode elongation
c.Reducing requirement of irrigation
d.Promoting flowering
When looking at plant hormones, pick one promoter and one inhibitor, and explain the hat they do and how they can be used by humans.
1. This hormone also helps in the plant regulation of body fluid
A. Gibberellins
B. Ethylene
C. Abscisic Acid
D. Auxin
2. This TRIGGERS the guard cells daily clocking in every 24 hours
A. Aquaporins
B. Circadian rhythm
C. Abscisic Acid
D. Lactic acid
Chapter 30 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Prob. 4DAACh. 30 - Prob. 1SQCh. 30 - Prob. 2SQCh. 30 - Prob. 3SQCh. 30 - _______ is the hormone in most rooting compounds....Ch. 30 - Prob. 5SQCh. 30 - Prob. 6SQ
Ch. 30 - Prob. 7SQCh. 30 - Ethylene differs from other hormones in that it...Ch. 30 - Prob. 9SQCh. 30 - Prob. 10SQCh. 30 - Prob. 11SQCh. 30 - Prob. 12SQCh. 30 - Match the hormone with the description. _____...Ch. 30 - Prob. 14SQCh. 30 - Prob. 15SQCh. 30 - Professional gardeners often soak seeds in...Ch. 30 - Photosynthesis sustains plant growth, and inputs...Ch. 30 - Prob. 3CTCh. 30 - Cattle in industrial dairy farms are typically...Ch. 30 - The oat coleoptiles on the left have been...
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- Match 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_forwardWhen 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_forwardIII. This hormone also helps in the plant regulation of body fluid. IV. It is the movement of a plant subjected to constant directional pressure V. These are the nervous supporting cells.arrow_forward
- List some examples of plant hormones.arrow_forwardAll known hormones in plants are regulated by proteasomes. Which of the following describes the molecular mechanisms that promote increased levels of hormones in plants? Select one: a. synthesis of a suppressing molecule b. degradation of the promoting molecule c. synthesis of a promoting molecule d. degradation of a suppressing moleculearrow_forwardWhich hormone(s) is/are responsible for the ability of sunflowers to turn their flowers to track the sun throughout the day? Explain how these hormones work.arrow_forward
- Can you answer this question, all of the parts please. A. Please explain the phenomenon of apical dominance in plant growth. B. Which plant hormone(s) involved in apical dominance?arrow_forwardDescribe the Function of Plant hormonesarrow_forwardMatch the hormone with the observation. ___ ethylene a. Your cabbage plants form ___ cytokinin elongated flowering stalks. ___ auxin b. The potted plant in your room ___ gibberellin is leaning toward the window. ___ ABA c. The last of your apples is getting ___ nitric oxide really mushy. d. The seeds of your roommate’s marijuana plant do not germinate no matter what he does to them. e. Lateral buds are sprouting. f. Your lettuce plants develop brown spots on their leaves.arrow_forward
- Choose the correct answer. These are chemical messenger that modulate the development of the different organs such that their relative growth is integrated and coordinated with each other? a) Psychohormones b) Fertilizers c) Phytohormones d) Plant Nutrientsarrow_forwardAn important difference between plant development and animal development is that______ . a. only plant development depends on hormones b. plants continue to develop throughout their lifetime c. animals, but not plants, have a circulatory systemarrow_forwardWhich hormone can regulate guard cells? Select one: a. ethylene b. abscisic acid c. gibberellin d. cytokinin e. auxinarrow_forward
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