28 Jan The term aerobic, anaerobic
G282L/MCB2289L Section 2L Introduction to Microbiology Lab – Residential and Online – 2017 Summer Quarter
• Question 1
A hypotonic solution is one with a solute concentration greater than that of a cell.
• Question 2
Human skin provides an environment with NaCl levels slightly above that of most bacterial cells. Which organism would most likely be found on the skin?
• Question 3
All of these terms categorize microorganisms based on their temperature preference EXCEPT which?
• Question 4
All microorganisms use oxygen in their metabolism
• Question 5
An organism that has an optimal pH for growth below 5.5 is considered an acidophile
• Question 6
Atmospheric gases, nutrients, pH, energy sources and radiation are all examples of ______ factors that affect microbial growth
• Question 7
The slowed growth or lack of growth of an organism at temperatures of pH outside of its ideal range is most likely due to changes in its ________?
• Question 8
The ideal environment for microbial growth would be:
Selected Answer: Warm, isotonic, neutral pH
• Question 9
Which of the following would be used to provide the optimum growth temperature for microorganisms that typically grow in humans?
• Question 10
An organism that is unable to grow in the presence of atmospheric levels of gaseous oxygen, but needs a small amount of oxygen for its metabolism is called a __________________?
• Question 11
Most human pathogens are classified as thermophiles.
• Question 12
A solution with a pH of 7 is acidic.
• Question 13
A hypertonic solution is prepared by the addition of sucrose. Which of the following would happen to bacteria placed in this solution:
• Question 14
All of the following organisms are expected to grow within an anaerobe jar EXCEPT
• Question 15
A microorganism will grow across the range of pH that allows for normal enzymatic function
• Question 16
Where would you expect an obligate anaerobe to grow in a nutrient broth tube?
• Question 17
The term aerobic, anaerobic, and microaerophilic are used to categorize microorganisms based on their ______ requirements.
• Question 18
All of the following are environmental factors that affect microbial growth EXCEPT
• Question 19
The changes or breakdown of three dimensional proteins that may result from a pH outside of an organism’s growth range is referred to as ______________
• Question 20
Distilled water would be _______ to bacterial cells:
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