MICROBIOLOGY W/ACCESS PKG >IP<
12th Edition
ISBN: 9781323592427
Author: Tortora
Publisher: PEARSON C
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Chapter 27, Problem 6R
Summary Introduction
To review:
The symbiotic relationship of cyanobacteria, mycorrhizae, Rhizobium and Frankia with their respective hosts.
Introduction:
In a symbiotic relationship, both organisms associating with each other are mutually benefitted. Nitrogen-fixing bacteria provide nitrogen, which is essential for organisms in amino acid synthesis, and in return the host provides a habitat; an anaerobic condition and nutrients necessary for bacterial growth. The process which is involved in the conversion of atmospheric nitrogen into ammonia is known as nitrogen fixation. The reaction is catalyzed by an oxygen-sensitive nitrogenase enzyme.
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Which of the following involve symbiotic relationships?
A. mycorrhizae AND ruminants
B. ruminants AND myxobacteria
C. myxobacteria, ruminants, AND rhizobia
D. rhizobia, mycorrhizae, AND ruminants
Symbiosis is a close relationship between different species where at least one requires the other for survival. Parasitism, commensalism, and mutualism are the major types of symbiosis. Why is the relationship between Rhizobium and its host considered mutualism and not one of the other types of symbiosis?
Ruminants (like cattle) are herbivores but lack the necessary enzymes to digest cellulose from plants. Part of the digestive tract of ruminants contains a microbial community that can break down cellulose. These microbes gain energy from the plant material, and byproducts of their metabolism provide the host with a source of Carbon and energy. What type of symbiosis does this relationship describe?
Chapter 27 Solutions
MICROBIOLOGY W/ACCESS PKG >IP<
Ch. 27 - The koala is a leaf-eating animal. What can you...Ch. 27 - Give one possible explanation of why Penicillium...Ch. 27 - In the sulfur cycle, microbes degrade organic...Ch. 27 - Why is the phosphorus cycle important?Ch. 27 - DRAW IT 5. Identify where the following processes...Ch. 27 - Prob. 6RCh. 27 - Outline the treatment process for drinking water.Ch. 27 - Prob. 8RCh. 27 - Bioremediation refers to the use of living...Ch. 27 - NAME IT 10. These nitrogen-fixing prokaryotes...
Ch. 27 - Activated sludge system a. the process takes place...Ch. 27 - Prob. 2MCQCh. 27 - Nitrogen fixation a. the process takes place under...Ch. 27 - Prob. 4MCQCh. 27 - The water used to prepare intravenous solutions in...Ch. 27 - CO2+H2SLightLightC6H12O6+S0 a. aerobic respiration...Ch. 27 - Prob. 7MCQCh. 27 - CO2+8H++8eCH4+2H2O a. aerobic respiration b....Ch. 27 - Prob. 9MCQCh. 27 - Coliforms are used as indicator organisms of...Ch. 27 - Prob. 1ACh. 27 - Explain the effect of dumping untreated sewage...Ch. 27 - Flooding after two weeks of heavy rainfall in...Ch. 27 - The bioremediation process shown in the photograph...
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- Which of the following statements is true regarding mycorrhizal relationships? this relationship is a type of parasitism bacteria partner with plant roots fungi provide energy (ATP) for their partner all glomeromycota are mycorrhizal fungi no statements above are truearrow_forwardWhy 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?arrow_forwardPlease try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free. The symbiotic association between fungi and algae iscalled(a) lichen (b) mycorrhiza(c) rhizome (d) endomycorrhizaarrow_forward
- Microbes which feed on dead organic material are classified as: pathogens parasites saprophytes autotrophsarrow_forwardwhat makes areobic or presence of oxygen conditions good for bacteria to growarrow_forwardWhich of the following bacterial genera is useful for the degradation of environmental pollutants? Streptomyces Nocardia Actinomyces Corynebacterium Rhizobiumarrow_forward
- A lichen is a symbiotic organism. It appears similar to a plant, but it is actually made up of two separate organisms, a fungus and cyanobacteria. The fungus transports water and nutrients to the cyanobacteria which then stores glucose for use by the fungus. Using a plant as your reference, which of the following statements would be the most accurate comparison to help someone understand the relationship between the fungus and cyanobacteria?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_forwardWhich of the following is the smallest living cell and canlive without oxygen?(a) Mycoplasma (b) Mycorrhiza(c) Euglena (d) Trypanosoma Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.arrow_forward
- Give a complete definition of mycorrhizae, citing the two main classes and the differences between them.arrow_forwardA lichen is a symbiotic organism. It appears similar to a plant, but it is actually made up of two separate organisms, a fungus and cyanobacteria. The fungus transports water and nutrients to the cyanobacteria which then stores glucose for use by the fungus.Using a plant as your reference, which of the following statements would be the most accurate comparison to help someone understand the relationship between the fungus and cyanobacteria? The cyanobacteria acts as the ground tissue while the fungus acts as the vascular tissue. The cyanobacteria functions as the roots while the fungus is similar to the flower of a plant. The cyanobacteria acts as the meristematic tissue and the fungus acts as the ground tissues. The cyanobacteria is similar to the xylem in a plant and the fungus is similar to the phloem in a plant.arrow_forwardDescribe the two symbiotic relationships between a fungus and another organism along with the explanation that how each partner is affected by the association.arrow_forward
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