Biological Science, Loose-leaf Edition (7th Edition)
7th Edition
ISBN: 9780135272800
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 29, Problem 5TYU
Summary Introduction
Introduction:
The ectomycorrhizal
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Check out a sample textbook solutionStudents have asked these similar questions
. Which statement about mycorrhizae is FALSE?
a. They are symbiotic associations between a fungus and a plant root.
b. They increase the uptake of nutrient minerals by the plant.
c. Arbuscular mycorrhizae are extracellular.
d. Endomycorrhizae are intracellular.
e. Members of the Glomeromycota may be involved.
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.
Chapter 29 Solutions
Biological Science, Loose-leaf Edition (7th Edition)
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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_forwardWhich 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_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_forwardSelect 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_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
- Which of the following organisms does not rely upon free spores to reproduce? Group of answer choices A. Gnetophyte B. Horsetail C. Liverwort D. Moldarrow_forwardIn a culture of hyphae of unknown origin, you notice that the hyphae lack septa and that the fungi reproduce asexually by using clumps of erect stalks. However, at times sexual reproduction can be observed. To what group of fungi would you assign it?a. Chytridiomycotab. Basidiomycotac. Ascomycotad. Zygomycotaarrow_forwardMycorhizal fungi have some unique characteristics which are the result of the symbiotic interaction with plants. In what ways are these fungi different from ones that are not mutualistic relationships with plants? (Choose All That Aarrow_forward
- In the life cycle of a typical basidiomycete, you would expect to find a dikaryotic cell in thea. primary mycelium.b. secondary mycelium.c. basidiospores.d. zygote.arrow_forwardWhich of these statements are false for lichens? Please select all correct answers. a.) Fungal species are obligate symbionts b.) A lichen is two species engaged in commensalism c.) Algal species are facultative symbionts d.) Lichen fungi gain sugars from algae e.) The relationship is beneficial for both fungi and algaearrow_forwardUse the Internet to find examples of chytrids, zygomycetes,ascomycetes, and basidiomycetes that cause diseases in plants oranimals. How does each fungus infect a host and spread to new hosts?What can humans do to fight each disease? What are the costs andbenefits of doing so?arrow_forward
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