BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 38, Problem 4A
Summary Introduction
Introduction:
The fungal pathogens are the group of pathogens which are able to cause diseases in the living organisms. The pathogenic fungi are usually microorganisms. The
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Which of the following is the function of cytokinin?
A. activation of defense response from biotrophic and hemi-biotrophic pathogens
B. structurally related to animal steroid hormones for growth and development
C. long distance (root-to-shoot) signals for nitrogen assimilation
D. defense from necrotrophic pathogens and herbivore insects
Following infection with a pathogen, one response is to spread an alarm signal to increase defenses and antimicrobial compounds throughout the plant body and the network of plants connected by mycorrhizae.
Which chemical spread this alarm signal?
Select one:
a. Salicylic acid
b. Jasmonic acid
c. Indole acetic acid
d. Gibberellic acid
e. Abscisic acid
Name 3 plant extracts that have demonstrated their significant antifungal activity against a broad range of fungal human pathogens. (Select all that apply)
Choose at least one answer.
a. fennel
b. cilantro
c. thyme
d. basil
Chapter 38 Solutions
BIOLOGY
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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- Identify mycorrhizal structure that penetrates into plant roots and reasons behind this. Also, explain the roles of mycorrhizae in plant defense against plant disease.arrow_forwardBlack spot fungus is a disease that is known to attack roses in humid climates. At first, small black spots appear on the leaves. If left untreated, the entire plant can die. From this information, what is mostly the main cause of the demise? *arrow_forwardCompare and contrast between matrix based transdermal delivery system and reservoir based transdermal delivery systems. Use fully annotated diagrams to support your answer. In you answer you should give consideration to the composition of the transdermal delivery system, where the drug is stored and how it is releasedarrow_forward
- Which hormone can regulate guard cells? Select one: a. ethylene b. abscisic acid c. gibberellin d. cytokinin e. auxinarrow_forwardThe figure attached shows an open stoma during a gaseous exchange process in a plant. A) What is 'y'? B) Elaborate the gaseous exchange process in plants by considering the influence of 'y' on the turgidity of guard cells.arrow_forwardA plant is displaying symptoms with purplish veins in older leaves. What can you conclude based on this scenario? *arrow_forward
- Which type of plant secondary metabolite is best known for theantioxidant properties of human foods such as blueberries, tea, andgrape juice?a. alkaloids b. cannabinoids c. carotenoids d. phenolics e. terpenoidsarrow_forwardAnswefr the following questions: a.) How many cells thick is the upper epidermis in the leaf structure? b.) Does this layer contain choloroplast? c.) Do cells of the lower epidermis contain chloroplast?arrow_forwardSucculent plants from arid regions generally have waxy surface coatings. Suggest why such a layer is valuable for the survival of the plant.arrow_forward
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