Microbiology Test 1

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