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Microbiology Midterm Review

145 Questions  I  By Tgerdel
Microbiology Midterm Review
Practice test for the Microbiology Midterm.

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