Microbiology Test 1

46 Questions  I  By KAT38059
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Microbiology Quizzes & Trivia
Prep for Micro test 1 Chapters 1 - 6 from Burton's Microbiology for the Health Sciences by: Paul G. Engelkirk Janet Duben-Engelkirk

  
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1.  The resolving power of the unaided human eye is 0.2 mm
A.
B.
2.  A simple microscope contains only ___ magnifying lens, whereas as compound microscope contains ___ magnifying lens.
3.  3 Microbes that do not cause disease are known as pathogens.
A.
B.
4.  Define and explin genotype and phenotype.
5.  Which organelle is considered to be a "packaging plant" ?
A.
B.
C.
D.
6.  The length of time it takes for one bacteria cell to split into two cells is referred to as what?
A.
B.
C.
D.
7.  A sex pilus enables what?
8.  An organisims complete collection of genes is referred to as what?
A.
B.
C.
D.
E.
F.
9.  Since viruses are not considered to be living organisims, they are referred to as what?
10.  Idividual microbes can be observed with the use of what?
11.  Two major categories of microbes are called what?
A.
B.
C.
12.  What enables bacteria to survive asverse conditions such as temperate extremes, dessication, and lack of nutients?
13.  Microbiology is the study of
14.  Define opportunistic pathogens.
15.  A "true nucleus" consists of neucleoplasm, chromosomes, and a nuclear membrane.
A.
B.
16.  What do Eucaryote cells possess that Procaryote cell do not?
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B.
C.
D.
17.  Explain how to calculate the total magnification of the compound light microscope.
18.  What are the three parts of a "true nucleus"?
19.  What are organelles of attachment, that enable bacteria to adhere to surfaces?
A.
B.
C.
D.
20.  What is the site of photosynthesis?
21.  ____ enables the transfer of genetic material from one bacterial cell to another.
22.  ___are the sites of protein synthesis.
23.  Explain the function of glycocalyx capsules as it relates to bacterial cells.
24.  Another name for acellular microbes are _____ and another name for cellular microbes are ____.
25.  Relatedness among organisims is determined by analysis of genes that code for small subunit ribosomes DNA.
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B.
26.  Nondisease causing microbes are considered to be nonpathogenic.
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B.
27.  Photographs taken using a transmission electron microscope or a scanning electron microscope are called transmission electron micrographs and scanning electron micrographs.
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B.
28.  Bacteria never posses any cilia.
A.
B.
29.  If a eucaryotic cell is motile is does not posses any flagella or cillia.
A.
B.
30.  Bacterial cells are commonly surrounded by a glycocalyx. What are the two types of gycocalyx?
31.  Endospores enable bacteria to do what?
32.  A simple microscope contains 4 different magnifying lens.
A.
B.
33.  The size of bacteria are expressed in nanometeres whereas the sizes of viruses are expressed in micrometers.
A.
B.
34.  When using a brightfield microscope a person observes objects _______ backgroud. When using a darkfield microscope a person observes objects _______background.
35.  Microbes that live on and in the human body are referred to as our ____.
36.  What is used to measure the dimensions of objects being viewed with a compund light microscope?
A.
B.
C.
D.
37.  The resolving power of a transmission electron microscope is what?
A.
B.
C.
D.
E.
38.  Photographs taken using compound light microscopes are called what?
39.  How do bacteria reproduce?
A.
B.
C.
40.  Scanning electron microscopes have a resolving power of approxiamtely 20 nanometers which is about 100 times stronger than the resolving power of a transmission electron microscope.
A.
B.
41.  Pathogens cause what 2 major types of diseases?
42.  Viruses are not alive so in order to replicate themselves they must invade a live host.
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B.
43.  Pathogens cause 2 major types of diseases: infectious diseases and microbial diseases.
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B.
44.  Name the 3 domains in the 3-Domain system.
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B.
C.
D.
E.
45.  Which organelle can be considered "power plants" or "energy factories"
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B.
C.
D.
46.  All viruses have to have both DNA and RNA present.
A.
B.
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