Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 4, Problem 5TQ
Summary Introduction
To review:
The generation time for the following: Clostridium perfringens, Mycobacterium leprae, Thermusaquaticus,and Psychromonasantarcticus.
Introduction:
Microscopic organisms or microorganisms are the organisms that cannot be seen with unaided eyes. The observation of these microscopic living organisms requires the use of special instruments such as a microscope. The microorganisms can be bacteria, virus, protozoa or
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Fermentation products produced by the skin-colonizing bacterium Staphylococcus epidermidis benefit humans in which of the following ways?
A) Mucus is dissolved by these fermentation products
B) Pathogens are destroyed by this bacterium through phagocytosis
C) These products bind to receptors and interfere with viral infections
D) They reduce the pH to values less hospitable to pathogens
E) This acid consumes nutrients
22) Which of the techniques/characteristics below may be used to identify a target
bacterium in a pool of microorganism?
a) its morphology
b) its growth requirement
c) antibody-antigen interaction
) d) all of the above.
) e) a and c
23) What is the process that produces alcohol in S. cerevisiae (yeast)?
() a) Respiration
( b) Sedimentation
c) Photosynthesis
)d) Fermentation
24) Identify the most mistaken (wrong) choice:
a) Halophiles are those organisms that like high salt concentrations.
) b) Some bacteria reproduce by binary fission.
( c) A fungus cell contains a true nucleus.
d) During the lag phase of growth, the metabolic activity is very low
When hydrogen peroxide is placed on a colony of an unknown bacterium, bubbles form. Based on this information, you can conclude that the bacteriuma) is Staphylococcus epidermidis.b) is a lactic acid bacterium.c) is beta-hemolytic.d) is catalase-positive.e) can cause strep throat.
Chapter 4 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 4.1 - Prob. 1TQCh. 4.2 - Prob. 1TQCh. 4.2 - Prob. 2TQCh. 4.3 - Prob. 1TQCh. 4.3 - Prob. 2TQCh. 4.3 - Prob. 3TQCh. 4.3 - Prob. 4TQCh. 4.4 - Prob. 1TQCh. 4.4 - Prob. 2TQCh. 4.4 - Prob. 3TQ
Ch. 4.4 - Prob. 4TQCh. 4.4 - Prob. 5TQCh. 4.4 - Prob. 6TQCh. 4.4 - Prob. 7TQCh. 4.4 - Prob. 8TQCh. 4.6 - Prob. 1TQCh. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 1TQCh. 4 - Prob. 2TQCh. 4 - Prob. 3TQCh. 4 - Prob. 4TQCh. 4 - Prob. 5TQCh. 4 - Prob. 6TQCh. 4 - Prob. 7TQ
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