Microbiology Test 1

46 Questions  I  By KAT38059
Microbiology Test 1
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 length of time it takes for one bacteria cell to split into two cells is referred to as what?
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B.
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2.  What are the three parts of a "true nucleus"?
3.  Photographs taken using compound light microscopes are called what?
4.  What enables bacteria to survive asverse conditions such as temperate extremes, dessication, and lack of nutients?
5.  A simple microscope contains only ___ magnifying lens, whereas as compound microscope contains ___ magnifying lens.
6.  ____ enables the transfer of genetic material from one bacterial cell to another.
7.  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.
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B.
8.  How do bacteria reproduce?
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B.
C.
9.  The resolving power of a transmission electron microscope is what?
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10.  ___are the sites of protein synthesis.
11.  All viruses have to have both DNA and RNA present.
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B.
12.  Bacterial cells are commonly surrounded by a glycocalyx. What are the two types of gycocalyx?
13.  Define opportunistic pathogens.
14.  Bacteria never posses any cilia.
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B.
15.  If a eucaryotic cell is motile is does not posses any flagella or cillia.
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B.
16.  An organisims complete collection of genes is referred to as what?
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17.  3 Microbes that do not cause disease are known as pathogens.
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B.
18.  A sex pilus enables what?
19.  Name the 3 domains in the 3-Domain system.
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20.  Viruses are not alive so in order to replicate themselves they must invade a live host.
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21.  What are organelles of attachment, that enable bacteria to adhere to surfaces?
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22.  Which organelle can be considered "power plants" or "energy factories"
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23.  The resolving power of the unaided human eye is 0.2 mm
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24.  Endospores enable bacteria to do what?
25.  When using a brightfield microscope a person observes objects _______ backgroud. When using a darkfield microscope a person observes objects _______background.
26.  Nondisease causing microbes are considered to be nonpathogenic.
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B.
27.  A simple microscope contains 4 different magnifying lens.
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B.
28.  Since viruses are not considered to be living organisims, they are referred to as what?
29.  Microbiology is the study of
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30.  A "true nucleus" consists of neucleoplasm, chromosomes, and a nuclear membrane.
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B.
31.  Pathogens cause what 2 major types of diseases?
32.  What is the site of photosynthesis?
33.  What do Eucaryote cells possess that Procaryote cell do not?
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34.  Which organelle is considered to be a "packaging plant" ?
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35.  Two major categories of microbes are called what?
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36.  The size of bacteria are expressed in nanometeres whereas the sizes of viruses are expressed in micrometers.
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B.
37.  Pathogens cause 2 major types of diseases: infectious diseases and microbial diseases.
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B.
38.  Explain how to calculate the total magnification of the compound light microscope.
39.  Relatedness among organisims is determined by analysis of genes that code for small subunit ribosomes DNA.
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40.  What is used to measure the dimensions of objects being viewed with a compund light microscope?
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41.  Define and explin genotype and phenotype.
42.  Another name for acellular microbes are _____ and another name for cellular microbes are ____.
43.  Explain the function of glycocalyx capsules as it relates to bacterial cells.
44.  Idividual microbes can be observed with the use of what?
45.  Microbes that live on and in the human body are referred to as our ____.
46.  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.
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