Microbiology Midterm Review

145 Questions  I  By Tgerdel on April 15, 2009
Practice test for the Microbiology Midterm.

  

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1.  The term that refers to the presence of flagella all over the cell surface is
A.
B.
C.
D.
E.
2.  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.
3.  Sterilization is achieved by
A.
B.
C.
D.
E.
4.  The time interval from parent cell to two new daughter cells is called the
A.
B.
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D.
E.
5.  The primary purpose of staining cells on a microscope slide is to
A.
B.
C.
D.
E.
6.  The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is
A.
B.
C.
D.
E.
7.  Which of the following is not considered a microorganism?
A.
B.
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D.
E.
8.  The microorganisms that do not have a nucleus in their cells are called
A.
B.
C.
D.
E.
9.  An organism with a temperature growth range of 45 degrees Celsius to 60 degrees Celsius would be called a/an
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B.
C.
D.
E.
10.  Infectious naked strands of RNA are called
A.
B.
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D.
E.
11.  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.
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D.
E.
12.  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.
13.  Helical and icosahedral are terms used to describe the shapes of a virus
A.
B.
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D.
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14.  Cilia are found in certain
A.
B.
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E.
15.  The easiest microbial forms to kill or inhibit are
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B.
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D.
E.
16.  The DNA of microorganisms is made up of subunits called
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B.
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D.
E.
17.  All of the following are correct about agar except
A.
B.
C.
D.
E.
18.  Microbiological contaminants are best described as
A.
B.
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D.
E.
19.  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.
20.  Bacteria that require special growth factors and complex organic substances are called
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B.
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D.
E.
21.  Which is mismatched?
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B.
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D.
E.
22.  The function of bacterial endospores is
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B.
C.
D.
E.
23.  Which of the following characteristics refers to the microscope's ability to show two separate entities as separate and distinct?
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B.
C.
D.
E.
24.  Organelles found in algae but not found in protozoa or fungi are the
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B.
C.
D.
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25.  All of the following is correct about treating viral diseases except
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B.
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D.
E.
26.  A mutation that changes a normal codon to a stop codon is called a
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D.
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27.  Which of the following are the main decomposers of the earth?
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B.
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D.
E.
28.  Microorganisms require small quantities of this nutrient for enzyme function and maintenance of protein structure:
A.
B.
C.
D.
E.
29.  During aerobic cellular respiration, the final electron acceptor is
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30.  Endospores are
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31.  The specimen preparation that is best for viewing cell motility is
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B.
C.
D.
E.
32.  Which of the following will not support viral cultivation?
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B.
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D.
E.
33.  Which of the following is the correct way to write the scientific name of this bacterium?
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B.
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D.
E.
34.  Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?
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B.
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D.
E.
35.  Viruses have all the following except
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B.
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D.
E.
36.  The process that destroys or removes all microorganisms and microbial forms including bacterial endospores is
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C.
D.
E.
37.  In the cell, energy released by electrons is often used to phosphorylate
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D.
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38.  What is the correct sequence for a Gram stain?
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B.
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D.
E.
39.  The use of energy by a cell to enclose a substance in its membrane by forming a vacuole and engulfing it is called
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B.
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D.
E.
40.  A bacterial genus that has waxy mycolic acid in the cell walls is
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B.
C.
D.
E.
41.  Enzymes that can function at boiling water temperatures or other harsh conditions would be termed
A.
B.
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D.
E.
42.  Which of the following diseases probably involves microbial infection?
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B.
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D.
E.
43.  Organisms called parasites are
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44.  Host range is limited by
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D.
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45.  All of the following are correct about prokaryotes except
A.
B.
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D.
E.
46.  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.
47.  Physical agents for controlling microbial growth include all the following except
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B.
C.
D.
E.
48.  A microaerophile
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B.
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D.
E.
49.  Fungi that grow as yeast at one temperature but will grow as mold at another temperature are called
A.
B.
C.
D.
E.
50.  Filamentous fungi are called
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B.
C.
D.
E.
51.  In bacterial cells, the electron transport system is located in the
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D.
E.
52.  The RNA molecules that carry amino acids to the ribosomes during protein synthesis are called
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D.
E.
53.  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.
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D.
E.
54.  Creutzfeld-Jacob disease is
A.
B.
C.
D.
E.
55.  A microbiologist decides to use a nutrient medium that contains thioglycollic acid.  What type of microbe is she attempting to culture?
A.
B.
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D.
E.
56.  Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called
A.
B.
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D.
E.
57.  The outcome of the Gram stain is based on differences in the cell's
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D.
E.
58.  The surgeon who advocated using disinfectants on hands and in the air prior to surgery was
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D.
E.
59.  All of the following structures contribute to the ability of pathogenic bacteria to cause disease except
A.
B.
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D.
E.
60.  The most immediate result of destruction of a cell's ribosomes would be
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D.
E.
61.  When humans manipulate the genes of microorganisms the process is called
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D.
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62.  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?
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B.
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D.
E.
63.  Peptidoglycan is a unique macromolecule found in bacterial
A.
B.
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D.
E.
64.  An organism's genotype includes all the following except they
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B.
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D.
E.
65.  HEPA filters are used to remove microbes from
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B.
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D.
E.
66.  Which of the following is essential for development of discrete, isolated colonies?
A.
B.
C.
D.
E.
67.  The type of microscope in which you would see brightly illuminated specimens against a black background is
A.
B.
C.
D.
E.
68.  Semiconservative replication refers to
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B.
C.
D.
E.
69.  Sources for human infection with worms are all of the following except
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B.
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D.
E.
70.  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.
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D.
E.
71.  Pasteur used swan-neck flasks in his experiments to prove that
A.
B.
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D.
E.
72.  All of the following are correct about biofilms except
A.
B.
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D.
E.
73.  Which is incorrect about chocolate agar?
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B.
C.
D.
E.
74.  Formation of peptide bonds between amino acids to build a polypeptide would be called
A.
B.
C.
D.
E.
75.  All of the following are examples of different types of microbiological media except
A.
B.
C.
D.
E.
76.  Spirochetes have a twisting and flexing locomotion due to appendages called
A.
B.
C.
D.
E.
77.  Groups of three consecutive bases along the DNA of a gene have the code for one
A.
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D.
E.
78.  Which method often results in colonies developing down throughout the agar and some colonies on the surface?
A.
B.
C.
D.
E.
79.  Infectious protein particles are called
A.
B.
C.
D.
E.
80.  The duplication of a cell's DNA is called
A.
B.
C.
D.
E.
81.  Virus capsids are made from subunits called
A.
B.
C.
D.
E.
82.  Larvae and eggs are developmental forms of
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B.
C.
D.
E.
83.  The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium is
A.
B.
C.
D.
E.
84.  Which of the following is correct about viruses?
A.
B.
C.
D.
E.
85.  The organelle involved in intracellular digestion of food particles is the
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B.
C.
D.
E.
86.  Koch's postulates are criteria used to establish that
A.
B.
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D.
E.
87.  Spontaneous generation is the belief that
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B.
C.
D.
E.
88.  Analysis of DNA fragments in gel electrophoresis involves
A.
B.
C.
D.
E.
89.  Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?
A.
B.
C.
D.
E.
90.  The term heterotroph refers to an organism that
A.
B.
C.
D.
E.
91.  The motile, feeding stage of protozoa is called the
A.
B.
C.
D.
E.
92.  Organisms that feed on dead organisms for nutrients are called
A.
B.
C.
D.
E.
93.  When patient tissues are transfected with viruses carrying a needed, normal human gene, the technique is called
A.
B.
C.
D.
E.
94.  In which pathway is the most NADH generated?
A.
B.
C.