CONNECT ACCESS FOR BIOL 01204 <C>
12th Edition
ISBN: 9781264443123
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 38, Problem 9U
If a plant has been attacked by a pathogen, then it is likely to be able to respond more quickly to a subsequent attack due to a mechanism called
a. basal defense.
b. induced hypersensitive response.
c. antimicrobial pathogen resistance.
d. systemic acquired resistance.
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In response to plant pathogens, plants will ______ hypersensitivity response and ____ salicyclic acid levels.
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suppress, increase
b.
suppress, decrease
c.
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d.
promote, increase
Plants have systemic defense mechanisms (i.e., those that are not normally active but can be induced when the plant is under attack). Briefly describe an example of one systemic defense, including the processes, structures and/or molecules involved.
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C. long distance (root-to-shoot) signals for nitrogen assimilation
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Chapter 38 Solutions
CONNECT ACCESS FOR BIOL 01204 <C>
Ch. 38.1 - Identify the compounds produced by the epidermis...Ch. 38.1 - Prob. 2LOCh. 38.1 - Prob. 3LOCh. 38.2 - Describe the role of secondary metabolites in...Ch. 38.2 - Prob. 2LOCh. 38.2 - Prob. 3LOCh. 38.3 - Prob. 1LOCh. 38.3 - Prob. 2LOCh. 38.4 - Prob. 1LOCh. 38.4 - Prob. 2LO
Ch. 38.4 - Prob. 3LOCh. 38 - Prob. 1IQCh. 38 - Nonnative invasive species are often a threat to...Ch. 38 - Prob. 2UCh. 38 - Prob. 3UCh. 38 - Prob. 4UCh. 38 - Prob. 5UCh. 38 - In response to wounding, a tomato plant first...Ch. 38 - When a cell undergoes a hypersensitive response,...Ch. 38 - The wound response products that bind to digestive...Ch. 38 - If a plant has been attacked by a pathogen, then...Ch. 38 - Prob. 1ACh. 38 - Both plant and animal immune systems can a....Ch. 38 - Your friend informs you that it is highly likely...Ch. 38 - Prob. 4ACh. 38 - You decide to plant a garden with a beautiful...Ch. 38 - Prob. 6ACh. 38 - Prob. 1SCh. 38 - Parasitoid wasps seem like an effective method to...Ch. 38 - Prob. 3S
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- An immune response against grass pollen often involves: A. Pathogen-associated molecular patterns B. Persistent infection by the pollen C. A hypersensitivity reaction D. Non-specific reactionarrow_forwardWhich of the following best describes evidence of a hypersensitive response? Select one: a. The bending of the coleoptile towards light. b. The growth of roots down and shoots up. c. When cells around an infection site die, depriving the pathogen of nutrients and preventing it from spreading. d. When plants elongate in response to being shaded. e. When stomata close despite plenty of CO 2 and water.arrow_forwardChoose the one answer that fits best. Which of the following is NOT true with respect to plant defenses? O a. Plants are susceptible to infections by bacteria and fungi. O b. Some plant produce chemicals that inhibit the growth of other plant species. O c. Some plant produce pheromones to alert other members of the same species of the presence of herbivores. d. Some plants produce volatile chemicals with strong odors that are unpleasant to herbivores. e. All plants produce toxic chemicals to prevent infection from bacteria and fungi as well as to deter herbivores.arrow_forward
- Which of the following is an effective plant defense against insect herbivory? Select one: a. Hypersensitive response b. Gene-for-gene resistance c. Salicylic acid d. Protease inhibitors e. Resistance genesarrow_forwardWhich of the following is an example of a primary defense against biotic stress?. Select one: a. stomata b. thorn c. morphine d. chloroplast e. vitamin Carrow_forwardSome plants are recognized by fungal pathogens on the basis of their stomatal pores. Which of the following would provide these plants immunity from fungal infection? a. Removing all of the stomata from the plant b. Changing the spacing of stomatal pores in these plants c. Reinforcing the cell wall in the guard cells of stomatal pores d. Increasing the number of trichomes on the surfacesarrow_forward
- Which of the following are examples of indirect chemical defenses? (Select all that apply). Extrafloral nectar Toxins Trichomes Compounds that make the plant taste bad Volatile organic compounds (VOCs)arrow_forwardJim has been diagnosed with meningococcal disease. His family has been started on an antibiotic to prevent them contracting the disease. This is an example of a. infection. b. prophylaxis. c. antimicrobial resistance. d. host defense.arrow_forward3. How do plants protect themselves from pathogens? I. They have specialized cells and antibodies that search and destroy pathogens. II. They have cell-surface receptors that recognize pathogens and elicit defense responses. III. They have impenetrable physical barriers such as bark and waxy cuticles. IV. They are capable of localized response characterized by self-destruction of plant cells around the site of infection. * I, III, and IV I, II, and IV I, II, III, and IV II, III, and IV No answerarrow_forward
- How does the plant hypersensitive response differ from systemic acquired resistance (SAR)?arrow_forwardWhich of the following statements best describes what is depicted in the above image? The leaf in the image has most likely been infected by a parasitoid. The leaf in the image is an example of a plant defense known as mimicry. O The leaf in the image is depicting an exploitative interaction. The leaf in the image is an example of a plant defense known as allelopathy.arrow_forwardCan you think of a reason why a doctor might choose to use an antibiotic that produces a SMALLER zone of inhibition against a pathogen than one that produces a larger zone of inhibitionarrow_forward
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