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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Textbook Question
Chapter 1, Problem 8MC
If you wanted to increase your chances of obtaining a member of the Archaea (rather than a member of another domain), which would be the best site to obtain a sample?
a) intestine of an elephant
b) skin of an elephant
c) a 95°C hot spring in Yellowstone
d) a 45°C hot spring in Hawaii
e) a raw hamburger patty
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You have discovered a new coccoid-shaped microorganism with no nucleus, a rigid cell wall, and a diameter of 2 μm. Chemical tests reveal that its cell wall does NOT contain peptidoglycan. The new microorganism is
A) most likely a bacterium.
B) most likely a eukaryote.
C) most likely an archaeon.
D) either a bacterium or an archaeon.
30) A water sample from a hot thermal vent contained a single-celled organism that had a cell wall but
lacked a nucleus. What is its most likely classification?
A) Eukarya
B) Archaea
C) Animalia
D) Protista
E) Fungi
31) To establish a link between a specific bacterium and a skin disease, researchers have shown that the
bacterium was present in sick persons but not in healthy individuals. They isolated the bacterium in a
pure culture and demonstrated that experimental healthy animals injected with this culture became
sick. What other experiment do researchers need to perform to be absolutely sure that the bacterium is
responsible for the disease?
A) Demonstrate that the bacterium belongs to the pathogenic lineage
B) Demonstrate that the bacterium is not able to live outside of humans or animals
C) Isolate bacterium from an infected sick animal and demonstrate that it is the same bacterium as the
one used for infection
D) Isolate bacterium from an infected sick animal and demonstrate…
The use of the Gram stain in microbiology is important because it differentiates
A) Bacteria from Archaea.
B) prokaryotic from eukaryotic cells.
C) bacterial cells with different types of cell walls.
D) archaeal cells with different types of metabolism.
Chapter 1 Solutions
Nester's Microbiology: A Human Perspective
Ch. 1 - How did Louis Pasteur help disprove spontaneous...Ch. 1 -
2. Describe the scientific method.
Ch. 1 - Explain why life could not exist without the...Ch. 1 - How is the normal microbiota important to human...Ch. 1 -
5. List four commercially important benefits of...Ch. 1 - What characteristics of microorganisms make them...Ch. 1 - Prob. 7SACh. 1 - In the designation Escherichia coli B. which part...Ch. 1 -
9. Why are viruses not microorganisms?
Ch. 1 - Name three non-living groups in the microbial...
Ch. 1 - The property of endospores that led to confusion...Ch. 1 -
2. The Golden Age of Microbiology was the time...Ch. 1 - If all prokaryotes were eliminated from the...Ch. 1 - Prob. 4MCCh. 1 -
5. All of the following are biological domains...Ch. 1 -
6. Which name is written correctly?
a)...Ch. 1 -
7. Members of which pairing are most similar in...Ch. 1 -
8. If you wanted to increase your chances of...Ch. 1 -
9. Viruses
1. contain both protein and nucleic...Ch. 1 - Antony van Leeuwenhoek could not have observed a)...Ch. 1 - The American Society for Microbiology is preparing...Ch. 1 - If you were asked to nominate one of the...Ch. 1 - A microbiologist obtained two pure biological...Ch. 1 - Why would archaea that grow in extreme...
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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
- John Tyndall mostly duplicated Pasteur's spontaneous generation experiments with the swan-necked flask: occasionally however, an experiment failed due to A) Othe absence of nutrients B) O the appearance of dust. C) O the presence of fermentative microbes. D) O the lack of oxygen. E) O the presence of endospores.arrow_forwardWhen do we make the determination that a bacterium is Gram positive? A) Safranin washes the crystal violet die out of the cell wall. B) Crystal violet die is not able to absorb into the cell wall. C) Alcohol does not wash the crystal violet die out of the cell wall. D) Crystal violet turns the bacterium a yellow color.arrow_forwardWhich of the following archaea would most likely be found coexisting with bacteria?a) Nanoarchaeum b) Halobacterium c) Methanococcusd) Picrophilus e) Sulfolobusarrow_forward
- An organism of the genus Staphylococcus is ________, while an organism of the genus Spirochaeta is ________. A) spherical / rod shaped B) rod shaped / coiled C) spherical / coiled D) coiled / sphericalarrow_forwardA culture medium on which only Gram-positive organisms grow is called a(n): Question 9 options: A) acid-fast medium B) differential medium C) enrichment culture D) selective mediumarrow_forwardIf you read that coliforms had been found in a lake, the report could have been referring to which of the following genera?a) Bacteroides b) Bifidobacterium c) Clostridiumd) Escherichia e) Streptococcusarrow_forward
- The peptidoglycan region in archaea is connected to each other by a: a) tetrapeptide b) Teichoic Acid c) Lipoteichoic acid d) all of the above e) none of the abovearrow_forwardThe Golden Age of Microbiology was the time whena) microorganisms were first used to make bread.b) microorganisms were first used to make cheese.c) most pathogenic bacteria were identified.d) a vaccine against influenza was developed.e) antibiotics became available.arrow_forward9) Identify most mistaken (wrong) choice: a) Bioremediation is the process by which microorganisms can be used to clean up toxic wastes. Ob) Some bacteria can survive very low temperatures. c) Both prokaryotes and eukaryotes have ways of protecting themselves against free radicals. d) Viruses can easily replicate in chemically defined mediaarrow_forward
- 73) The type of bacteria that lacks peptidoglycan in its cell wall is: a) Cyanobacteria b) Eubacteria c) Archaebacteria d) Bacteriophage e) Halophiles 74) All the followings belong to the same method of controlling bacteria except: a) Radiation b) Gases c) Dry Heat d) Filtration e) Low temperatures 75) The reason bacteria uses siderophore is because of the: a) Low solubility of iron oxide in water b) The molecule is a good iron chelator c) Low solubility of Ferrous in water d) Low solubility of Ferric in water e) c & darrow_forwardAfter 5 days from the trip, Adnan noticed that his foot was red and it started to itch.a) What organism could have caused these symptoms? (write the name of the kingdom) b) Write the scientific name of an organism that might have caused the symptoms.arrow_forwardThere are major differences between the bacteria and the archaea but both groups were historically grouped together. i) summarize the similarities between the bacteria and archaea, ii) what are the differences between the two groups that allow us to distinguish them?arrow_forward
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