Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 24, Problem 3VCQ
Figure 24.21 If symbiotic
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Why would it be disadvantageous for a plant to form a symbiotic relationship with a mycorrhizal fungus when phosphate is abundant in the soil surrounding its roots?
The microorganisms responsible for symbiotically fixing nitrogen in the nodules on
the roots of legume plants are:
bacteria
actinomycetes
algae
fungi
O autotrophs
If all of the saprophytic fungi in an ecosystem died, which of the following would be a likely short-term result?
Group of answer choices
Plants would not be able to absorb nutrients from the soil as effectively
Dead plant material would be decomposed more quickly, releasing higher levels of CO2
Less carbon dioxide would be released into the atmosphere because dead plant material would not be decomposed
Plants would be unable to absorb nitrogen as efficiently because their root symbiotic fungi would be unable to break gaseous nitrogen apart Plants would be unable to absorb nitrogen as efficiently because their root symbiotic fungi would be unable to break gaseous nitrogen apart
Chapter 24 Solutions
Biology 2e
Ch. 24 - Figure 24.14 Which of the following statements is...Ch. 24 - Figure 24.17 Which of the following statements is...Ch. 24 - Figure 24.21 If symbiotic fungi are absent from...Ch. 24 - Which polysaccharide is usually found in the cell...Ch. 24 - Which of these organelles is not found in a fungal...Ch. 24 - The wall dividing individual cells in a fungal...Ch. 24 - During sexual reproduction, a homothallic mycelium...Ch. 24 - The life cycles of perfect fungi are most similar...Ch. 24 - The most primitive phylum of fungi is the...Ch. 24 - Members of which phylum produce a club shaped...
Ch. 24 - Members of which phylum establish a successful...Ch. 24 - The fungi that do not reproduce sexually used to...Ch. 24 - A scientist discovers a new species of fungus that...Ch. 24 - What term describes the close association of a...Ch. 24 - Why are fungi important decomposers? They produce...Ch. 24 - Consider an ecosystem where all the fungi not...Ch. 24 - A fungus that climbs up a tree reaching higher...Ch. 24 - A fungal infection that affects nails and skin is...Ch. 24 - The targets for anti-fungal drugs are much more...Ch. 24 - Yeast is a facultative anaerobe. This means that...Ch. 24 - The advantage of yeast cells over bacterial cells...Ch. 24 - Why are fungal insecticides an attractive...Ch. 24 - What are the evolutionary advantages for an...Ch. 24 - Compare plants, animals, and fungi, considering...Ch. 24 - Why is the large surface area of the mycelium...Ch. 24 - What is the advantage for a basidiomycete to...Ch. 24 - For each of the four groups of perfect fungi...Ch. 24 - Why does protection from light actually benefit...Ch. 24 - Ambrosia bark beetles carry Amb/os/e//a fungal...Ch. 24 - Ecologists often attempt to introduce new plants...Ch. 24 - Why can superficial mycoses in humans lead to...Ch. 24 - Explain how the Red Queen Hypothesis describes the...Ch. 24 - Historically, artisanal breads were produced by...Ch. 24 - How would treating an area of a forest with a...
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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
- Lichens are a mutualistic association of a fungus and either an alga or a cyanobacterium in which the fungus slowly engulfs the photosynthetic partner. the phototroph provides inorganic phosphorus to the fungus. the fungus helps collect sunlight for the photosynthetic partner. the fungus protects the photosynthetic partner from erosion.arrow_forwardThe roots of most plants form a symbiotic association with soil fungi. Name the association and the element that it supplies to the plant.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
- One of the most widely known symbioses between microorganisms and plants is that of rhizobia and legumes. The basis of this mutualistic, symbiotic relationship can be described by which of the following statements? Actually, all of these are accurate descriptions of the symbiosis between rhizobia and plants. Rhizobia help the plants expand access to minerals in the soil while the plant protects the rhizobia from predators and viruses. The rhizobia will conduct photosynthesis which allow the plants to access carbon without having to deplete their own energy to do carbon fixation. The rhizobia fix nitrogen for the plant while the plant fixes carbon which it shares with the rhizobia. The rhizobia will produce oxygen which will help the soil to maintain oxygenation and thus avoid pathogens.arrow_forwardFungi 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 do plants benefit from symbiotic associations with bacteria? With fungi? (answer must not exceed one paragraph)arrow_forward
- Determine if the following statements are true and false. (a) Mycorrhizae exhibit non-symbiotic relatiionship.(b) All biotic relationships are symbiotic.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_forwardMycorrhizae are; Symbiotic associations between bacteria and fungi Symbiotic associations between plant roots and fungi Symbiotic associations between two different species of fungiarrow_forward
- What steps would it take for a fungus to establish a symbiotic relationship with plants? I understand that there are symbiotic soil fungi that are entangled amongst plant roots but this question I am wondering how they form a relationship if the fungus live between the plant cells.arrow_forwardThe following figure depicts the outline of a large fairy ring that has appeared overnight in an open meadow, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 metres below the soil surface. Which type of organisms made this structure (it wasn't a fairy!)? What is mycelium? Explain in one sentence each. Which location (A-D) most likely indicates the oldest part of this organism? Explain in 1-2 sentences.arrow_forwardit is discovered that the algae-killing product (AlgaeBdead) that spilled in Lake Ontario also inhibits (slows) the growth of fungi in the lake. Explain one way this would negatively affect the lake ecosystem.arrow_forward
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