CAMPBELL BIOLOGY-EBOOK
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ISBN: 9780134443959
Author: Urry
Publisher: PEARSON
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Chapter 39, Problem 2TYU
Summary Introduction
Introduction: In Greek “auxin” means “to increase”. Apical portion of the shoot contains the auxin hormone. It initiates the cell elongation and thereby helps in growth.
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What is vitrification? How stem cells and callus are different from each other?
Which of the following does auxin cause in the tropism with which it is involved?
increased protein synthesis
increased plasma membrane permeability
hardening of cell walls
cell elongation
rapid cell division
List any four uses of auxins.
Chapter 39 Solutions
CAMPBELL BIOLOGY-EBOOK
Ch. 39.1 - What are the morphological differences between...Ch. 39.1 - Cycloheximide is a drug that inhibits protein...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - WHAT IF? If a plant has the double mutation err...Ch. 39.2 - MAKE CONNECTIONS What type of feedback process is...Ch. 39.3 - If an enzyme in field-grown soybean leaves is most...Ch. 39.3 - WHAT IF? If a plant flowers in a controlled...Ch. 39.3 - MAKE CONNECTIONS Plants detect the quality of...Ch. 39.4 - Prob. 1CC
Ch. 39.4 - Prob. 2CCCh. 39.4 - Prob. 3CCCh. 39.5 - What are some drawbacks of spraying fields with...Ch. 39.5 - Chewing insects mechanically damage plants and...Ch. 39.5 - Many fungal pathogens get food by causing plant...Ch. 39.5 - WHAT IF? Suppose a scientist finds that a...Ch. 39 - What are two common ways by which signal...Ch. 39 - Is there any truth to the old adage, "One bad...Ch. 39 - Why did plant physiologists propose the existence...Ch. 39 - Plants that have acclimated to drought stress are...Ch. 39 - Prob. 39.5CRCh. 39 - Prob. 1TYUCh. 39 - Prob. 2TYUCh. 39 - Prob. 3TYUCh. 39 - How may a plant respond to severe heat stress? (A)...Ch. 39 - Level 2: Application/Analysis 5. The signaling...Ch. 39 - If a long-day plant has a critical night length of...Ch. 39 - Prob. 7TYUCh. 39 - DRAW IT Indicate the response to each condition by...Ch. 39 - Level 3: Synthesis/Evaluation 9. EVOLUTION...Ch. 39 - SCIENTIFIC INQUIRY A plant biologist observed a...Ch. 39 - SCIENCE. TECHNOLOGY, AND SOCIETY Describe how our...Ch. 39 - Prob. 12TYUCh. 39 - Prob. 13TYU
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- How does the signal transduction pathway for auxin that leads to cell wall loosening. Include the receptors ABP and ARF. How does the auxin pathway possibly differ from the 'generic' signal transduction pathway? Consider expressing the cellular components that differ in the absence and presence of auxin.arrow_forwardDescribe the inluence of auxin on apical dominance.arrow_forwardDescribe the unique way that auxin can move through a plant.arrow_forward
- What do you mean by auxin?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_forwardHow does cytokinin and auxin interact in the determination of organs in the developing plant embryo?arrow_forward
- In plant physiology, What is leaf abscission and how is it controlled by the interaction between auxin and ethylene?arrow_forwardWhat is apical dominance? How do auxin and cytokinin interact in determining the growth of lateral buds?arrow_forwardWhat are synthetic auxinsand what are their uses?arrow_forward
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