Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Question
Chapter 29, Problem 5TYU
Summary Introduction
Introduction:
The ectomycorrhizal
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Check out a sample textbook solutionStudents have asked these similar questions
The Greek root endo means "within" or "internal." Why are endomycorrhizal fungi, or AM Fungi, aptly named?
Select one:
O a. their hyphae form tree-like branching structures inside plant root cells
O b. they are mutualistic
c. their hyphae form dense mats that surround roots but do not penetrate the cell walls
O d. they form clamp connection that link cells together
Both Ascomycetes and Basidiomycetes form ectomycorrhizal associations with plants. Another
group of fungi, the Glomeromycota, form endomycorrhizal partnerships. Which answer below best
describes the two pictures seen here? (Hint: mycorrhizae stain reddish-purple!)
Picture A
400x (c.s.)
Picture B
400x (c.s.)
O Picture A is an endo- while Picture B is an ecto-mycorrhizal view
O Picture A is an ecto- while Picture B is an endo-mycorrhizal view
Mycorrhizae
Select one:
A. Help plants gather solar energy.
B. Help plants gather organic nutrients.
C. Are a type of lichen.
D. Are mutualistic relationships.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How can ascomycetes be distinguished from basidiomycetes?a. Ascomycete hyphae have simple pores in their septa and lack clampconnections, whereas basidiomycete hyphae display complex septalpores and clamp connections.b. Ascomycetes produce sexual spores in sacs, whereasbasidiomycetes produce sexual spores on the surfaces of clubshaped structures.c. Ascomycetes are commonly found in lichens, whereasbasidiomycetes are less commonly partners in lichen associations.d. Ascomycetes are not commonly mycorrhizal partners, butbasidiomycetes are commonly present in mycorrhizal associations.e. All of the above are correct.arrow_forwardHow does a mycorrhizal fungus differ from a free-living basidiomycete? a. It gains its nutrients from a living plant. b. It has no sexual stage in its life cycle. c. It is not edible. d. All of the above are correct.arrow_forwardBiologists have discovered that many mycorrhizal fungi are sensitive to a low pH. What human-caused environmental problem may prove catastrophic for these fungi? How may this problem affect their plant partners? What measures could we take to decrease the problem?arrow_forward
- Which of the following is true of mychrrhizae? 1. The fungal hyphae of ectomycorrhizae form arbuscles. 2. Ectomycorrhizae penetrate the cytoplasm of root cells. 3. Endomycorrhizal fungal hyphae form a dense mantle ensheathing roots. 4. Ectomycorrhizae are found in many crop plants such as wheat and maize. 5. Ectomycorrhizal fungal hyphae form a dense mantle ensheathing roots.arrow_forwardThe cell walls of fungi are strengthened by chitin, a strong but flexible polysaccharide. Which of these statements about the function of chitin in fungal cell wall is TRUE? a. Chitin-rich walls of fungi improves feeding by facilitated diffusion. b. The movement of water and nutrients into fungal cells creates pressure that could cause them to burst if they were not surrounded by a chitin-rich cell wall. c. The chitin present in fungal cell wall does not impart any advantage in terms of nutrient acquisition from the environment. d. Chitinous tubular cell walls confers motility to multicellular fungi.arrow_forwardMost vascular plants form mycorrhizae with which type of fungus? a. Yeast b. Glomeromycetes c. Club fungi d. Sac fungi O e. Microsporidiaarrow_forward
- Fungi play a variety of roles in the ecosystem. Discuss briefly each of the following roles stated below. Give specific examples whenever possible. 1. Decomposers 2. Mycorrhizae 3. Lichen Symbiont 4. Endophyte 5. Plant Pathogenarrow_forwardHow are a fungus's hyphae, mycelium, and septa related? A. The hyphae is a network of branched mycelium. Individual mycelia are separated by cross walls called septa. B. The mycelium is a network of branched septa. Individual septa are separated by cross walls called hyphae. C. The mycelium is a network of branched hyphae. Individual hyphae are separated by cross walls called septa. D. The septa is a network of branched hyphae. Individual hyphae are separated by cross walls called mycelium.arrow_forwardWhy are fungi important decomposers? a. They produce many spores. b. They can grow in many different environments. c. They produce mycelia. d. They recycle carbon and inorganic minerals by the process of decomposition.arrow_forward
- Select all that apply to root-associated fungi a. arbuscular mycorrhizal fungi cross the plant cell membrane, but not the cell wall b. 80% of plants partner with arbuscular mycorrhizal fungi c. a concern with making commercially available mycorrhizal mixes is shelf life d. arbuscular mycorrhizal fungi can protect plants from pathogens e. glomeromycota depend on the partnership with their plant host to complete their lifecycle f. arbuscular mycorrhizal fungi provide increased access to water and fix nitrogen 2. Select all that are true regarding soil a. the most abundant element of soil is inorganic mater b. plants passively acquire cations by using ATP to pump H+ into the soil c. soil plays key roles in water regulation and buffering of pollutants d. soil is an essential source of carbon for plants e. plants use H+ from photosynthesis to acquire cations f. anions are unbound in the soil…arrow_forwardEcologists often attempt to introduce new plants to restore degraded land. In an arid climate, scientists recommend introducing plants with arbuscular mycorrhizae. How would the mycorrhizae increase the plants’ survival compared to plants without mycorrhizae?arrow_forwardWhat term describes the close association of a fungus with the root of a tree? a. arhizoid b. a lichen c. a mycorrhiza d. anendophytearrow_forward
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