Microbiology Midterm Review

145 Questions  I  By Tgerdel
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Microbiology Quizzes & Trivia
Practice test for the Microbiology Midterm.

  
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1.  Which term is not used to describe bacterial cell shapes?
A.
B.
C.
D.
E.
2.  Chitin is a chemical component of the cell walls of
A.
B.
C.
D.
E.
3.  Peptidoglycan is a unique macromolecule found in bacterial
A.
B.
C.
D.
E.
4.  Which type of medium is able to distinguish different species or types of microorganisms based on an observable change in the colonies or in the medium?
A.
B.
C.
D.
E.
5.  When a rod shaped bacteria is short and plump, it is called a
A.
B.
C.
D.
E.
6.  Koch's postulates are criteria used to establish that
A.
B.
C.
D.
E.
7.  Thermococcus litoralis and Thermus aquaticus are thermophilic bacteria that are
A.
B.
C.
D.
E.
8.  An organelle that is a stack of flattened, membranous sacs and functions to receive, modify, and package proteins for cell secretion is the
A.
B.
C.
D.
E.
9.  The microorganisms that do not have a nucleus in their cells are called
A.
B.
C.
D.
E.
10.  Which of the following diseases probably involves microbial infection?
A.
B.
C.
D.
E.
11.  Spirochetes have a twisting and flexing locomotion due to appendages called
A.
B.
C.
D.
E.
12.  Protists include
A.
B.
C.
D.
E.
13.  Which cell structure is an important agent in modern genetic engineering techniques?
A.
B.
C.
D.
E.
14.  HEPA filters are used to remove microbes from
A.
B.
C.
D.
E.
15.  When patient tissues are transfected with viruses carrying a needed, normal human gene, the technique is called
A.
B.
C.
D.
E.
16.  Viruses acquire envelopes around their nucleocapsids during
A.
B.
C.
D.
E.
17.  Which of the following are the main decomposers of the earth?
A.
B.
C.
D.
E.
18.  Sterilization is achieved by
A.
B.
C.
D.
E.
19.  Sources for human infection with worms are all of the following except
A.
B.
C.
D.
E.
20.  Helminths are
A.
B.
C.
D.
E.
21.  A scientist collects grass clippings to find the source of an outbreak of tularemia is an example of working in the field of
A.
B.
C.
D.
E.
22.  All of the following are correct about agar except
A.
B.
C.
D.
E.
23.  Which of the following is a scientific name?
A.
B.
C.
D.
E.
24.  The process that destroys or removes all microorganisms and microbial forms including bacterial endospores is
A.
B.
C.
D.
E.
25.  The organelle involved in intracellular digestion of food particles is the
A.
B.
C.
D.
E.
26.  Larvae and eggs are developmental forms of
A.
B.
C.
D.
E.
27.  Visible, clear, well-defined patches in a monolayer of virus-infected cells in a culture are called
A.
B.
C.
D.
E.
28.  A microbiologist makes a fixed smear of bacterial cells and stains them with Loeffler's methylene blue.  All the cells appear blue under the oil lens.  This is an example of
A.
B.
C.
D.
E.
29.  All of the following are correct about prokaryotes except
A.
B.
C.
D.
E.
30.  What is the correct sequence for a Gram stain?
A.
B.
C.
D.
E.
31.  Fungi that grow as yeast at one temperature but will grow as mold at another temperature are called
A.
B.
C.
D.
E.
32.  A bacterial cell exhibiting chemotaxis probably has
A.
B.
C.
D.
E.
33.  A microbiologist inoculates Staphylococcus aureus into a culture medium.  Following incubation, both Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in this culture.  What is the most likely explanation?
A.
B.
C.
D.
E.
34.  Organisms called parasites are
A.
B.
C.
D.
E.
35.  A mutation that changes a normal codon to a stop codon is called a
A.
B.
C.
D.
E.
36.  Infectious naked strands of RNA are called
A.
B.
C.
D.
E.
37.  The outcome of the Gram stain is based on differences in the cell's
A.
B.
C.
D.
E.
38.  Transgenic animals
A.
B.
C.
D.
E.
39.  Host range is limited by
A.
B.
C.
D.
E.
40.  Virus capsids are made from subunits called
A.
B.
C.
D.
E.
41.  Which of the following diseases is transmitted by mosquitoes?
A.
B.
C.
D.
E.
42.  Analysis of DNA fragments in gel electrophoresis involves
A.
B.
C.
D.
E.
43.  The movement of substances from lower to higher concentration across a semipermeable membrane that must have a specific protein carrier and use energy is called
A.
B.
C.
D.
E.
44.  All of the following are found in some or all protozoa except
A.
B.
C.
D.
E.
45.  Which method often results in colonies developing down throughout the agar and some colonies on the surface?
A.
B.
C.
D.
E.
46.  Microbiological contaminants are best described as
A.
B.
C.
D.
E.
47.  Microorganisms require large quantities of this nutrient for use in cell structure and metabolism:
A.
B.
C.
D.
E.
48.  Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called
A.
B.
C.
D.
E.
49.  A microaerophile
A.
B.
C.
D.
E.
50.  Formation of peptide bonds between amino acids to build a polypeptide would be called
A.
B.
C.
D.
E.
51.  An organism with a temperature growth range of 45 degrees Celsius to 60 degrees Celsius would be called a/an
A.
B.
C.
D.
E.
52.  Enzymes that can function at boiling water temperatures or other harsh conditions would be termed
A.
B.
C.
D.
E.
53.  The term that refers to the presence of flagella all over the cell surface is
A.
B.
C.
D.
E.
54.  The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium is
A.
B.
C.
D.
E.
55.  These structures are used by bacteriophages to attach to host cell receptors
A.
B.
C.
D.
E.
56.  Viruses have all the following except
A.
B.
C.
D.
E.
57.  The primary purpose of staining cells on a microscope slide is to
A.
B.
C.
D.
E.
58.  In which pathway is the most NADH generated?
A.
B.
C.
D.
E.
59.  Which of the following is not associated with every virus?
A.
B.
C.
D.
E.
60.  The duplication of a cell's DNA is called
A.
B.
C.
D.
E.
61.  The deliberate removal of genetic material from one organism and combining it with the genetic material of another organism is a specific technique called
A.
B.
C.
D.
E.
62.  Infectious protein particles are called
A.
B.
C.
D.
E.
63.  Pasteur used swan-neck flasks in his experiments to prove that
A.
B.
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D.
E.
64.  Which of the following is essential for development of discrete, isolated colonies?
A.
B.
C.
D.
E.
65.  The shortest time required to kill all the microbes in a sample at a specified temperature is called the
A.
B.
C.
D.
E.
66.  Groups of three consecutive bases along the DNA of a gene have the code for one
A.
B.
C.
D.
E.
67.  All of the following structures contribute to the ability of pathogenic bacteria to cause disease except
A.
B.
C.
D.
E.
68.  The study of evolutionary relationships among organisms is called
A.
B.
C.
D.
E.
69.  Which common hospital pathogen is able to grow abundantly in soap dishes?
A.
B.
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D.
E.
70.  Which of the following will not support viral cultivation?
A.
B.
C.
D.
E.
71.  Among the microorganisms, various genomes can include
A.
B.
C.
D.
E.
72.  Bacteria that require special growth factors and complex organic substances are called
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B.
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D.
E.
73.  The motile, feeding stage of protozoa is called the
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B.
C.
D.
E.
74.  Organisms that feed on dead organisms for nutrients are called
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B.
C.
D.
E.
75.  In bacterial cells, the electron transport system is located in the
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B.
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D.
E.
76.  Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?
A.
B.
C.
D.
E.
77.  An organism's genotype includes all the following except they
A.
B.
C.
D.
E.
78.  During which of the phases of cellular respiration is the majority of ATP formed?
A.
B.
C.
D.
E.
79.  All of the following is correct about treating viral diseases except
A.
B.
C.
D.
E.
80.  Eucaryotic flagella differ from procaryotic flagella because only eucaryotic flagella
A.
B.
C.
D.
E.
81.  A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium.  Following incubation, only the E. coli grows in the culture.  What is the most likely explanation?
A.
B.
C.
D.
E.
82.  Which is incorrect about chocolate agar?
A.
B.
C.
D.
E.
83.  The Five I's of studying microorganisms include all of the following except
A.
B.
C.
D.
E.
84.  Host cells of viruses include
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B.
C.
D.
E.
85.  Which of the following is correct about viruses?
A.
B.
C.
D.
E.
86.  Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?
A.
B.
C.
D.
E.
87.  Physical agents for controlling microbial growth include all the following except
A.
B.
C.
D.
E.
88.  The specimen preparation that is best for viewing cell motility is
A.
B.
C.
D.
E.
89.  The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing is the
A.
B.
C.
D.
E.
90.  EcoRI and HindIII are
A.
B.
C.
D.
E.
91.  The correct sequence of events in viral multiplication is
A.
B.
C.
D.
E.
92.  All bacterial cells have
A.
B.
C.
D.
E.
93.  Endospores are
A.
B.
C.
D.
E.
94.  The antiparallel arrangement within DNA molecules refers to
A.
B.
C.
D.
E.
95.  Spontaneous generation is the belief that
A.
B.
C.
D.
E.
96.  The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is
A.
B.
C.
D.
E.
97.  All of the following are correct about food irradiation except
A.
B.
C.
D.
E.
98.  All of the following are correct about biofilms except
A.
B.
C.
D.
E.
99.  If a microbiologist is studying a specimen at a total magnification of 950X, what is the magnifying power of the objective lens is 10X?
A.
B.
C.
D.
E.
100.  This is often used in forensic science to distinguish one sequence of DNA from another by comparing the sequence of the strands at specific loci:
A.
B.
C.
D.
E.
101.  Creutzfeld-Jacob disease is
A.
B.
C.
D.
E.
102.  The RNA molecules that carry amino acids to the ribosomes during protein synthesis are called
A.
B.
C.
D.
E.
103.  Which is mismatched?
A.
B.
C.
D.
E.
104.  The surgeon who advocated using disinfectants on hands and in the air prior to surgery was
A.
B.
C.
D.
E.
105.  Cilia are found in certain
A.
B.
C.
D.
E.
106.  The time interval from parent cell to two new daughter cells is called the
A.
B.
C.
D.
E.
107.  Which of the following is found in eucaryotic cells but not in procaryotic cells?
A.
B.
C.
D.
E.
108.  The function of bacterial endospores is
A.
B.
C.
D.
E.
109.  During aerobic cellular respiration, the final electron acceptor is
A.
B.
C.
D.
E.
110.  Which of the following is not considered a microorganism?
A.
B.
C.
D.
E.
111.  The virus-induced, specific damage to the host cell that can be seen in a light microscope is called
A.
B.
C.
D.
E.
112.  Microorganisms require small quantities of this nutrient for enzyme function and maintenance of protein structure:
A.
B.
C.
D.
E.
113.  When humans manipulate the genes of microorganisms the process is called
A.
B.
C.
D.
E.
114.  In the cell, energy released by electrons is often used to phosphorylate
A.
B.
C.
D.
E.
115.  The type of microscope in which you would see brightly illuminated specimens against a black background is
A.
B.
C.
D.
E.
116.  This microscope achieves the greatest resolution and highest magnification:
A.
B.
C.
D.
E.
117.  When buds remain attached, they form a chain of yeast cells called
A.
B.
C.
D.
E.
118.  A technique that separates a readable pattern of DNA fragments is
A.
B.
C.
D.
E.
119.  The term heterotroph refers to an organism that
A.
B.
C.
D.
E.
120.  The core of every virus particle always contains
A.
B.
C.
D.
E.
121.  The various techniques by which scientists manipulate DNA in the lab is called
A.
B.
C.
D.
E.
122.  Disease-causing microorganisms are called
A.
B.
C.
D.
E.
123.  The term phototroph refers to an organism that
A.
B.
C.
D.
E.
124.  The DNA of microorganisms is made up of subunits called
A.
B.
C.
D.
E.
125.  All of the following are examples of different types of microbiological media except
A.
B.
C.
D.
E.
126.  Enzymes are
A.
B.
C.
D.
E.
127.  Sequences of DNA that are identical when read from the 5' to 3' direction on one strand and the 3' to 5' direction on the other strand are
A.
B.
C.
D.
E.
128.  The use of energy by a cell to enclose a substance in its membrane by forming a vacuole and engulfing it is called
A.
B.
C.
D.
E.
129.  The cell's series of tunnel-like membranes functioning in transport and storage are the
A.
B.
C.
D.
E.
130.  Helical and icosahedral are terms used to describe the shapes of a virus
A.
B.
C.
D.
E.
131.  Bacterial conjugation involves
A.
B.
C.
D.
E.
132.  Semiconservative replication refers to
A.
B.
C.
D.
E.
133.  Which of the following is the correct way to write the scientific name of this bacterium?
A.
B.
C.
D.
E.
134.  Filamentous fungi are called
A.
B.
C.
D.
E.
135.  Which of the following characteristics refers to the microscope's ability to show two separate entities as separate and distinct?
A.
B.
C.
D.
E.
136.  The easiest microbial forms to kill or inhibit are
A.
B.
C.
D.
E.
137.  Satellite viruses are
A.
B.
C.
D.
E.
138.  The breakdown of peptidoglycan to N-acetylmuramic acid, N-acetylglucosamine and peptides is an example of
A.
B.
C.
D.
E.
139.  Organelles found in algae but not found in protozoa or fungi are the
A.
B.
C.
D.
E.
140.  The movement of substances from higher to lower concentration across a semipermeable membrane that must have a specific protein carrier but no energy expenditure is called
A.
B.
C.
D.
E.
141.  The transfer of genes during bacterial conjugation involves rigid, tubular appendages called
A.
B.
C.
D.
E.
142.  The most immediate result of destruction of a cell's ribosomes would be
A.
B.
C.
D.
E.
143.  A bacterial genus that has waxy mycolic acid in the cell walls is
A.
B.
C.
D.
E.
144.  Amplification of DNA is accomplished by
A.
B.
C.
D.
E.
145.  A microbiologist decides to use a nutrient medium that contains thioglycollic acid.  What type of microbe is she attempting to culture?
A.
B.
C.
D.
E.
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