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Microbiology Midterm Review

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

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