Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Chapter 28, Problem 1MC
Summary Introduction
Introduction:
The top layer in a microbial mat (a type of biofilm) is made up of different species of cyanobacteria. Its color is green due to the presence of photosynthetic pigment found in the cyanobacteria.
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21) The use of Penicillin and Bacteriocins are examples of: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Metabolite inhibitors e) DNA inhibitors 22) Evaluating the effectiveness of a chemical or reagent is done through: a) Periodic transfer and refrigeration b) the Phenol Coefficient test c) Lyophilization d) Viral mediated lysis e) a and b23) Salmonella typhi and Staphylococcus aureus are two species used in: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Autoclave effectiveness evaluation e) Phenol Coefficient test24) Chemotherapeutics have ____ Toxicity: a) Broad spectrum b) General c) Differential d) Selective e) c & d 25) The gas that has been used recently used to decontaminate biological safety cabinets is: a) EtO b) Beta-propiolactone c) NO Gas d) N2O Gas e) Vapor-phase H2O2
Chapter 28 Solutions
Nester's Microbiology: A Human Perspective
Ch. 28 -
1. Describe why a microbial mat has green,...Ch. 28 -
2. How do bacteriocins benefit bacteria in their...Ch. 28 - Prob. 3SACh. 28 - What is the role of genetic databases in...Ch. 28 - Prob. 5SACh. 28 - Prob. 6SACh. 28 - Prob. 7SACh. 28 - Prob. 8SACh. 28 - Give examples of free-living and symbiotic...Ch. 28 - Prob. 10SA
Ch. 28 - Prob. 1MCCh. 28 - Which of the following is false? a) Culture...Ch. 28 -
3. Which of the following pairs that relate to...Ch. 28 - Prob. 4MCCh. 28 - Prob. 5MCCh. 28 - Prob. 6MCCh. 28 - Prob. 7MCCh. 28 -
8. Energy for ecosystems can come from
a)...Ch. 28 -
9. Mycorrhizas represent associations between...Ch. 28 - In symbiotic nitrogen fixation by rhizobia and...Ch. 28 - Prob. 1ACh. 28 - Prob. 2ACh. 28 - Prob. 1CTCh. 28 - Prob. 2CT
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- A range of antibiotics is produced by bacteria related to: (choose only one) a) Bacillus b) Mycoplasma c) Streptomyces d) spirochaetes e) cyanobacteriaarrow_forwardSuppose that a virus destroys all arthropods in a soil community. Which of the following is not a population that will benefit from this event? a) Nematodes b) Birds c) Fungi d) Bacteriaarrow_forwardAdvanced treatment is often designed to removea) BOD.b) nitrates and phosphates.c) bacteria.d) protozoa.e) methane.arrow_forward
- 70) The term Autotroph in bacteria refers to _____ source for an organism: a) Carbon b) Energy c) Electron d) Food e) Macromolecule71) A Chemolithotrophic organism gets its energy from: a) Chemical bond present in organic substance b) Chemical bond present in inorganic substance c) Chemical bond present in light d) a and c are correct e) none of the above72) Precursor metabolites are used in the biosynthetic pathways to: a) build elements b) assemble macromolecules c) assemble polymers d) monomers e) reduce sugararrow_forwardWhich of the following would be the easiest to eradicate?a) A pathogen that is common in wild animals but sometimes infects humansb) A disease that occurs exclusively in humans, always resulting in obvious symptomsc) A mild disease of humans that often results in no obvious symptomsd) A pathogen found in marine sedimentse) A pathogen that readily infects both wild animals and humansarrow_forward19) Which of the following BEST describes an agent that is bactericidal? A) Windex. B) It suspends bacterial growth. C) It kills the bacteria. D) It causes the bacteria to destroy themselvesarrow_forward
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