Microbiology: Chapter 7

35 Questions  I  By Kaiello
Please take the quiz to rate it.

Microbiology Quizzes & Trivia

  
Changes are done, please start the quiz.


Questions and Answers

Removing question excerpt is a premium feature

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

Removing ad is a premium feature

Upgrade and get a lot more done!
Take Another Quiz
We have sent an email with your new password.