Connect With Learnsmart Labs Online Access For Prescott's Microbiology
11th Edition
ISBN: 9781260408997
Author: Joanne Willey
Publisher: Mcgraw-hill Higher Education (us)
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Textbook Question
Chapter 31.3, Problem 1.2CC
What unique stresses does a microorganism on a leaf contend with that a microbe in the soil does not?
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All of the following are true about soil microorganismsEXCEPT:(a) They never affect or change the physical characteristicsof their soil microenvironment.(b) They are considered to be a part of the soil.(c) All major microbial taxonomic groups can be found insoil (bacteria, fungi, algae, protists, viruses).(d) Species of the genus Clostridium contain important hu-man pathogens found in soil.(e) They are important as decomposers in the carbon andnitrogen cycles.
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Chapter 31 Solutions
Connect With Learnsmart Labs Online Access For Prescott's Microbiology
Ch. 31.1 - How are filamentous microbes especially well...Ch. 31.1 - Prob. 1CCCh. 31.1 - Prob. 2CCCh. 31.1 - What microbes commonly degrade cellulose and...Ch. 31.1 - Which of the following soils would a farmer be...Ch. 31.1 - Why is most nitrogen fertilizer added as ammonium...Ch. 31.2 - What are the differences in preferred soil...Ch. 31.2 - What types of archaea have been detected in soils?Ch. 31.2 - Prob. 3CCCh. 31.3 - Define rhizosphere, rhizoplane, and associative...
Ch. 31.3 - What unique stresses does a microorganism on a...Ch. 31.3 - List two ways in which compounds produced by...Ch. 31.3 - What important genera are involved in associative...Ch. 31.3 - Prob. 1MICh. 31.3 - Prob. 2.1CCCh. 31.3 - Prob. 2.2CCCh. 31.3 - What is the function of the rhizomorph and the...Ch. 31.3 - Describe the uptake and transfer of ammonium by...Ch. 31.3 - Propose two potential functions for mycorrhization...Ch. 31.3 - How do you think Frankia spp. protect nitrogenase...Ch. 31.3 - List several bacteria that are considered...Ch. 31.3 - Prob. 3.2CCCh. 31.3 - What does the term terminally differentiated mean?Ch. 31.3 - How does nitrogen transfer between a rhizobium and...Ch. 31.3 - What is unusual about leghemoglobin production and...Ch. 31.3 - What are the two general mechanisms by which...Ch. 31.3 - How does the production of opines by the plant...Ch. 31.3 - What is the difference between the Ti plasmid and...Ch. 31.3 - What functions do the members of the two-component...Ch. 31.3 - What are the two general ways by which plant...Ch. 31.3 - How are plant pathologists attempting to control...Ch. 31.4 - Compare and contrast the metabolism (specifically,...Ch. 31.4 - What happens in terms of microbiological processes...Ch. 31.4 - What microbial genera have been observed in oil...Ch. 31 - Prob. 1RCCh. 31 - Prob. 2RCCh. 31 - Prob. 3RCCh. 31 - Prob. 4RCCh. 31 - Prob. 5RCCh. 31 - Prob. 6RCCh. 31 - Prob. 7RC
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- For both fertilizers, plant growth began to decrease when 1.5 kg of fertilizer was given. D) Rhizobia are bacteria that live on the roots of some plants, such as legumes like pea plants. Rhizobia convert an element in the atmosphere into ammonia. Identify and explain the type of relationship this represents. A) It is parasitism because the bacteria absorbs food from the pea plant. It is commensalism because the bacteria and pea plant don't harm each B) other. It is competition because the rhizobia and pea plant both need the limited amount of available nitrogen. C) It is mutualism because the bacteria receives carbon from the pea plant, D) Eliminate while the plant uses the ammopia to make amíno acids. ITEST PREP FAX 1-877-816-0808 Read Our Blog PHONE 1-877-377-9537 Privacy Policy S FOR WHAT'S NEXT © USATestprep, LLC 2021, All Rights Reserved. Sign carrow_forwardWhat is the difference between a bactericidal antibiotic and an antibiotic that is bacteriostatic? Examine the zone of inhibition around each disk for the presence of micro colonies within the zone. What do these micro colonies represent? Why didn't plants evolve anti-microbial agents against all the microbes in their environment?arrow_forwardWhat is soil pollution?Suggest various ways to prevent soil pollution?arrow_forward
- you have isolated a Bacillus species and would like to test its plant growth promoting abilities. other than nitrogen fixation and ACC deaminase production, discuss three other traits that you would look for and their significance in promoting plant growth.arrow_forwardWhich is false among A-E regarding symbiotic nitrogen fixation? A) O Initiation of the symbiosis involves communication between the plant and bacteria B)O Within the plant, the bacteria differentiate into N2 fixing bacteroids C) O The N2-fixation process is sensitive to oxygen. D) O The bacteria infect the root of the plant via an infection thread. E) O None are false; A-E are all true,arrow_forwardExplant can be aa) Cut part of the plant used in tissue cultureb) Plant extract used in tissue culturec) Source of growth regulators added to mediad) Solidifying agentarrow_forward
- Which of the following occurs when a biofilm (or a part of it) begins to starve or experiences oxygen depletion? A) O attachment B) O quorum sensing C) O EPS (exopolysaccharide) production D) O dissolution or dispersal E) O biofilm maturationarrow_forwardAt which stage of the coconut water processing chain can microorganisms contribute to the spoilage of coconut water?arrow_forwardIn New York, farmers typically have a 3 year crop rotation of corn – soybeans – green manure. A) explain one reason crop rotation is important in farming B) explain what green manure is and why a grower would use it as part of their rotation schedulearrow_forward
- There are various environmental factors that can influence microbial growth and reactions. These factors play a role which will determine if a microbe can function in a given environment. What are 2 environmental factors believed to be the most important out of the others ?arrow_forwardWhat are biofertilisers? A farmer is advised to add a culture of bacterium in the soil before sowing the crop. Name the bacterium in the culture. How is this bacterium useful to the crop?arrow_forwardBiofilms represent an important environmental niche. A) How does growth on a surface differ from growth in a suspended laboratory culture? (In other words: How do biofilm-forming cultures differ from planktonic cultures) B) Describe the stages of biofilm development including cellular and extracellular components? C) What processes regulate might regulate biofilm formation? Is quorum sensing involved and if so, how common is it? D) Why would biofilms promote the formation of genetic variants? What are the mechanisms by which this might occur? These questions are all related.arrow_forward
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