Microbiology: Chapter 7

35 Questions  I  By Kaiello
Microbiology: Chapter 7

  
Changes are done, please start the quiz.


Question Excerpt

Removing question excerpt is a premium feature

Upgrade and get a lot more done!
1.  CULTURE MEDIA: Solid 
A.
B.
2.  Bacterial cells grow how?
A.
B.
C.
3.  Need oxygen, but only will grow under low oxygen concentrations (soil, water) 
A.
B.
C.
D.
E.
4.  The need for oxygen to live is an....
A.
B.
C.
D.
E.
5.  Can grow at 0 degress C, optimum is about 20-30 degrees. Most important with food spoilage. 
A.
B.
C.
D.
E.
6.  Which of these words describes when a cell is in its lowest possible temperate environment in which it can still grow?
A.
B.
C.
7.  Cannot tolerate oxygen. This is an example of 
A.
B.
C.
D.
E.
8.  Generation time is the time it takes for one cell to become 
A.
B.
C.
9.  Can grow at 0 degrees C, optimum at <15 degrees. Are considered obligate with respect to cold. Live normally in arctic conditions. 
A.
B.
C.
D.
E.
10.  Which are the only two types of bacteria that humans come into contact with normally?
A.
B.
C.
D.
11.  Optimum temperatures are 80 degrees C or greater (usually archea). Found in volcanoes 
A.
B.
C.
D.
E.
12.  Bacteria divide by which of the following?
A.
B.
C.
13.  This chemical requirement, phosphorous, is taken in with inorganic phosphate (PO4^(-3)) 
A.
B.
C.
14.  Most bacteria thrive in a neutral pH, some are called acidophiles whose optimal pH can be as low as what?
A.
B.
C.
D.
15.  In order to determine the number of bacterial cells present we must serially dilute the sample, and plate the dilution until a countable plate is reached. Then, count the colonies and multiply by the dilution factor. 
A.
B.
16.  Like all organisms, bacteria have both ______ and _______ requirements if they are to grow 
17.  This phase has an exponential decline.
A.
B.
C.
D.
18.  Will not use oxygen, but it wont kill them. This is an...
A.
B.
C.
D.
E.
19.  CULTURE MEDIA: Liquid
A.
B.
20.  Growth usually refers to the increase in which of these
A.
B.
21.  Which of these words describes when a cell is in an environment of its "best growth"
A.
B.
C.
22.  Catalase is an enzyme that aids in the conversion of which of these?
A.
B.
C.
23.  This phase has exponential growth. 
A.
B.
C.
D.
24.  In this phase the number of cells remains the same, because the rate of death equals the rate of growth. 
A.
B.
C.
D.
25.  Optimal temperatures of 35-40 degrees C, range 10-50. They are the most common, most pathogens are this type. 
A.
B.
C.
D.
E.
26.  May use oxygen if present, but can exist without it (fermentation). This is an
A.
B.
C.
D.
E.
27.  Can cold kill bacteria?
A.
B.
28.  Halophiles are a type of bacteria that can exist in this type of condition. 
A.
B.
C.
29.  The chemical need for atmospheric nitrogen (N2) is normally found within
A.
B.
C.
30.  This phase of growth has little growth, and high metabolic activity. 
A.
B.
C.
D.
31.  The chemical need for ammonia, nitrate, or nitrite is found within 
A.
B.
C.
32.  Peroxidase is an enzyme that aids in the conversion of which of these? 
A.
B.
C.
33.  Which of these words describes when a cell is in its highest temperate environment in which it can still grow?
A.
B.
C.
34.  Superoxide dismutase is an enzyme that helps the conversion of which of these?
A.
B.
C.
35.  Optimal temperatures are 50-60 degrees C, and range from 40-70. 
A.
B.
C.
D.
E.
Back to top


to post comments.

Removing ad is a premium feature

Upgrade and get a lot more done!
Take Another Quiz