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Microbio 509

88 Questions  I  By Hyprlt
Microbio 509
Questions are taken from Carmen, microbiologyplace. Com (P) (pre-tests chap 1 and 2,

  
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Question Excerpt

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1.  Emerging infectious diseases can be due to ________. P
A.
B.
C.
D.
2.  Circle TWO of the following lab rules that are examples of using aseptic technique.
A.
B.
C.
D.
E.
3.  Ex. 7: In the acid-fast stain, the decolorizning agent(s) is (are)
A.
B.
C.
D.
E.
4.  Most fungi are described as hyphal. Hyphae form mats of growth known as
A.
B.
C.
D.
5.  Where should you dispose of each of the following in lab: (NOTE: If biohazard container is partof any of your answers, be sure to describe as either the one on your lab bench or the one on the cart.) Culture in a Petri dish?
6.  Which of the following is not a characteristic of Bacteria? P
A.
B.
C.
D.
7.  Which of the following is a scientific name? P
A.
B.
C.
D.
8.  Which of the following is an advantage of an electron microscope over a light microscope?
A.
B.
C.
D.
9.  Which of the following statements about the atom 12C is not true? P
A.
B.
C.
D.
10.  Ribose and adenine can be found in RNA and in _______. P
A.
B.
C.
D.
11.  Which of the following statements about cellulase is true? P
A.
B.
C.
D.
12.  When taking a sample from a broth culture, why should you vortex the tube?
A.
B.
C.
D.
13.  Which of following molecules contains amino groups? P
A.
B.
C.
D.
14.  You will use a sterile swab to inoculate your plate during this exercise. Where should you dispose of the swab and the wrapper?
A.
B.
C.
D.
15.  Where should you dispose of each of the following in lab: (NOTE: If biohazard container is partof any of your answers, be sure to describe as either the one on your lab bench or the one on the cart.) Gauze used to clean your microscope?
16.  Which of the following types of microorganism and its description is not correctly matched? P
A.
B.
C.
D.
17.  Ex.6, Per.2: Which of the following mistakes might cause the growth in all three of the sectors on the streak plate to look the same?
A.
B.
C.
D.
18.  Which of the following statements about the atom Na (atomic number 11) is not true? P
A.
B.
C.
D.
19.  Which of the following terms does not belong with the others? P
A.
B.
C.
D.
20.  Ex. 8: The smear of Bacillus megaterium must be heat fixed before using the capsule stain.
A.
B.
21.  West Nile Virus is transmitted to humans by _______. P
A.
B.
C.
D.
22.  Ex. 8: After completing the capsule stain, the slides must be air dried rather than blotting with bibulous paper.
A.
B.
23.  Before you return your microscope to its storage cabinet, what should you have your lab instructor do?
A.
B.
C.
D.
24.  What is one way you can visually tell if a live organism you are observing in a wet mount of ahay infusion is prokaryotic or eukaryotic?
A.
B.
C.
D.
25.  In the scientific name, Escherichia coli, Escherichia is the _______. P
A.
B.
C.
D.
26.  Which of the following statements about bacteria is not true? P
A.
B.
C.
D.
27.  Detergents can combine with lipid molecules. Which part of a cell would you expect detergents to damage? P
A.
B.
C.
D.
28.  Which one of the following is used to calculate the resolving power of the lens of a compound light microscope?
A.
B.
C.
D.
29.  Which of the following is TRUE concerning the yeast form of fungi?
A.
B.
C.
D.
30.  The bacterium Autumium quarterii has an inner membrane and a thick PG layer. After A. quarterii is Gram stained, how would you expect it to appear under the oil immersion lens?
A.
B.
C.
D.
31.  You observe a sample of living bacteria under the microscope in lab and notice that they all seem to be moving in the same direction. This movement could best be described as,
A.
B.
C.
D.
32.  Which one of the following slides will you view using the 100X oil immersion lens? (Lab 1)
A.
B.
C.
D.
33.  A student takes a sample from a colony growing on a plate and makes a wet mount. When she observes the sample using the 40X objective, she notes the presence of buds. The microbes in the colony are likely
A.
B.
C.
D.
34.  Which of the following fields of study and its example are not correctly matched? P
A.
B.
C.
D.
35.  The laboratory and medical procedures employed to prevent microbial contamination are called ________. P
A.
B.
C.
D.
36.  Phosphorous is found in all of the following cell components except ________. P
A.
B.
C.
D.
37.  Which of the following would be a way to microscopically distinguish bacteria from yeast?
A.
B.
C.
D.
38.  A 3-phase streak was done in lab to,
A.
B.
C.
D.
39.  Ex. 7: Bacteria with a waxy layer of mycolic acid
A.
B.
C.
D.
40.  what is the cellular arrangement?OOOOOO
A.
B.
C.
D.
41.  Water is an excellent solvent as well as an effective temperature buffer. This is due to ________. PP
A.
B.
C.
D.
42.  All of the following are products produced naturally by microorganisms except which one? P
A.
B.
C.
D.
43.  Nitrogen is found in all of the following cell components except ________. P
A.
B.
C.
D.
44.  Which of the following processes are beneficial activities of microorganisms? P
A.
B.
C.
D.
45.  (Ex. 7, 8, 9): Look at the three photomicrographs above. Which one of the following micrographs represents a sample stained using the Endospore stain?
A.
B.
C.
46.  Which one of the following is an example of bioremediation? P
A.
B.
C.
D.
47.  Circle the correct answers in the statement below:Most of the dyes used to stain bacteria are (basic or acidic) since most bacteria have an overall (positive, negative) charge.
A.
B.
C.
D.
48.  If you look at a sample from hay infusion and see microbes moving with visible cilia or flagella, the microbes must be
A.
B.
C.
D.
49.  Stains (Ex. 7, 8, 9):  Look at the three photomicrographs above. Which one of the following micrographs represents a sample stained using the Capsule stain?
A.
B.
C.
50.  When you flame sterilize your inoculating loop, you must hold the inoculating loop in the flame until which of the following glows red hot?
A.
B.
C.
D.
51.  If you look at a sample from hay infusion and see very small microbes moving but no cilia or flagella are visible, the microbes are most likely
A.
B.
C.
D.
52.  What kind of chemical reaction is involved when bacteria are used for the bioremediation of a petroleum spill? P
A.
B.
C.
D.
53.  Where should you dispose of gauze used to clean immersion oil off of your microscope?
A.
B.
C.
D.
54.  Ex. 9: Endospores are reproductive cells formed by some bacteria.
A.
B.
55.  Which of the following are LIGHT microscopes?
A.
B.
C.
D.
E.
56.  Which of the following microbes are eukaryotic?
A.
B.
C.
D.
57.  Which of the following microbes that you will either use or observe this lab period are bacteria?
A.
B.
C.
D.
58.  When making a wet mount from a broth culture, how should you remove the cap of tube of culture?
A.
B.
C.
D.
59.  Ex. 8: A capsule stain is described as a negative stain because
A.
B.
C.
D.
60.  Which of the following scientists and their discoveries is not correctly matched? P
A.
B.
C.
D.
61.  Ex. 6, Per. 2:  The following suggestion will help you improve your spread plate technique:  When  making a spread plate, do not resuspend your culture.
A.
B.
62.  Which of the compounds listed below is an inorganic compound? P
A.
B.
C.
D.
63.  When comparing the images produced by the SEM and the TEM, the image produced by the SEM
A.
B.
C.
D.
64.  Which of the following best describes the introduction of a human gene into bacteria to induce the bacteria to produce the human protein? P
A.
B.
C.
D.
65.  The type of bond holding C and H atoms in glucose is a/an ________. P
A.
B.
C.
D.
66.  How does the hydrogen ion concentration in lemon juice (pH 2) compare to the hydrogen ion concentration in tomato juice (pH 4)? P
A.
B.
C.
D.
67.  All of the following are examples of biotechnology except ______. P
A.
B.
C.
D.
68.  Ex. 6, Per. 2: The following suggestion should help you improve your spread plate technique: When making a spread plate for a lawn of growth, you should streak the plate 3 times in 3 different directions.
A.
B.
69.  The chemical reactions involved in protein synthesis and synthesis of cell wall peptidoglycan are examples of_________ .
A.
B.
C.
D.
70.  Working with the French wine industry, Louis Pasteur developed a process that ________. P
A.
B.
C.
D.
71.  When you flame sterilize your inoculating loop, you must hold the inoculating loop in the flame until which of the following glows red hot?
A.
B.
C.
D.
72.  Ex. 9: Bacteria produce endospores for both reproduction and survival.Stains
A.
B.
73.  Ex. 6, Per. 2: Which one of the following mistakes might cause you to find more than one type of colony on your streak plate?
A.
B.
C.
D.
74.  Which one of the following microscopes should you use to observe bacteria that have been Gram stained?
A.
B.
C.
D.
E.
75.  Which of the following molecules contain long hydrocarbon chains? P
A.
B.
C.
D.
76.  Which of the following is an example of anabolism? P
A.
B.
C.
D.
77.  Avian influenza has not yet become widespread among humans because ________. P
A.
B.
C.
D.
78.  The type of bond holding Na+ and Cl- ions in NaCl is a/an ________. P
A.
B.
C.
D.
79.  One objective lens on the compound light microscope MUST always be used with immersion oil. It is also the ONLY one that can be used with immersion oil. The magnification of this objective lens is
A.
B.
C.
D.
80.  Which of the following does not belong with the others? P
A.
B.
C.
D.
81.  All of the following scientists performed experiments that supported the theory of biogenesis except ________. P
A.
B.
C.
D.
82.  The first observations of bacteria were made by ________. P
A.
B.
C.
D.
83.  Ex. 10: The most common method used to separate mixed cultures is the
A.
B.
C.
D.
84.  In which one of the following microscopes might light waves be added together to make endospores (or other cellular structures) appear very bright when viewed under the microscope?
A.
B.
C.
D.
85.  12C and 14C atoms differ in the ________. P
A.
B.
C.
D.
86.  Which of the following terms does no belong with the others? P
A.
B.
C.
D.
87.  Which one of the following statements is TRUE concerning hyphae?
A.
B.
C.
D.
88.  Which of the following chemical bonds is the strongest? P
A.
B.
C.
D.
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