Microbiology Midterm Review

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Microbiology Quizzes & Trivia
Practice test for the Microbiology Midterm.

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