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