Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
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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Chapter 39 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
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 - Prob. 3CCCh. 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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- Plant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. a) Describe the plant’s response to the presence of light. (refer to picture)arrow_forwardEpidermal growth factor, Platelet derived growth factor and nerve growth factor are all examples of what type of signaling molecule? a)local mediator b)hormone c)neurotransmitter d)All of the other answers are correct e)contact dependent signaling molecule.arrow_forward(a) Describe the role of mitosis in the growth of a plant. (b) Explain why there are more cells observed in mitosis in the root tip than in the woody stem.arrow_forward
- Plants under biotic stress will rapidly increase concentration of reactive oxygen species (ROS). (i) The above oxidative burst will happen at cellular level. Describe the observable symptoms by naked eyes and explain the symptoms development at cellular level. (ii) Explain the roles of ROS in plant defense. (iii) Which part of plant cell initiates oxidative burst?arrow_forward22) the function of stem cells in this region of a tissue is to increase the number of cells that go on to differentiate into parenchymal cells a) transmit amplifying zone b)organizer zone c) parenchymal cell zone d) all of these e) none of thesearrow_forwardWhich of the following statements concerning axonal transport is FALSE O A) The polarity of microtubules helps determine the direction of transport B) Trophic substances and growth factors are taken up by the nerve terminal and transported in the retrograde direction. C) Retrograde transport uses actin filaments and anterograde transport uses microtubules. O D) Motor proteins sometimes compete for different cargoes O E) Kinesins and dyneins transport cargoes in opposite directions along microtubulesarrow_forward
- Describe the primary types of plant organs, tissues and cells in each of the following: a) a plain spinach salad and b) a plain potato salad (no toppings).arrow_forwardThe cell walls of parenchyma cells (a) contain large quantities of pectin in the thickened corners (b) are rich in lignin but do not contain hemicelluloses and pectin (c) are predominantly cellulose, although they also contain hemicelluloses and pectin (d) contain cellulose, hemicelluloses, and ligninin approximately equal amounts (e) contain hemicelluloses, pectin, and lignin but no cellulosearrow_forwardPlant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. (b) Explain the role that auxin has in eliciting the plant’s response.arrow_forward
- Plant-to-plant signalling in response to herbivory is mediated by Select one: a)lignin deposition b)abscisic acid c)the anti-malarial molecule artemisin d)volatile organic compoundsarrow_forwardGrowth factors induce synthesis of cyclin D and then Cyclin D promotes Cdk4 and Cdk6 which progress the cell from G1 to S phase. a) True b) Falsearrow_forward2. Plant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. (a) Describe the plant's response to the presence of light. (b) Explain the role that auxin has in eliciting the plant's response. (c) Explain how the behavioral responses of the plant affect their overall fitness.arrow_forward
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