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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Chapter 29, Problem 3TYK
Summary Introduction
Introduction:
The mycelia are the vegetative structure of the
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How 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.
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.
. 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.
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- Why 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_forwardMycorrhizae Select one: A. Help plants gather solar energy. B. Help plants gather organic nutrients. C. Are a type of lichen. D. Are mutualistic relationships.arrow_forwardDetermine some ways that explain that the relationship between a plant root and a mycorrhizal fungus is mutualistic.arrow_forward
- 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 togetherarrow_forwardWhich phase of a fungal life cycle is best adapted to growing in ahost’s body?a. yeast b. hyphal c. conidial d. filamentousarrow_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_forward
- A scientist is interested in genetically engineering a fungus to hinder its reproductive process so that it does not spread fast. Which process should be disrupted to hinder fungal reproduction? A. Mycelium formation B. Nutrient absorption C. Septa formation D. Spore formation E. None of thesearrow_forwardMost vascular plants form mycorrhizae with which type of fungus? a. Yeast b. Glomeromycetes c. Club fungi d. Sac fungi O e. Microsporidiaarrow_forwardWhat are the three stages of sexual reproduction that ascomycetes and basidiomycetes have in common? A. Fragmentation, budding, and spore production B. Meiosis, budding, and karyogamy C. Spore production, plasmogamy, and budding D. Plasmogamy, karyogamy, and meiosisarrow_forward
- 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 viewarrow_forwardThe mycelium of a multicelled fungus is a mesh of filaments, each called a_______ . a. septa b. hypha c. sporearrow_forwardMycelium is a mass of conidia. A. True B. Falsearrow_forward
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