High concentrations of salt and sugars in food act as preservatives by
A) inactivating nutrients essential for bacterial growth.
B) changing the level of available oxygen.
C) altering the pH of the medium.
D) creating a hypertonic environment.
E) inhibiting enzyme activity.
Correct Answer:
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A)are hair-like appendages on some bacterial cells.
B)are
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Q19: When viewed under the microscope,the shape of
Q20: Flagella are
A)protein filaments which enable bacterial cells
Q22: Endospores are
A)an important method of survival for
Q23: During the logarithmic (log)phase of bacterial growth
A)the
Q24: Which of the following methods is used
Q25: Most medically important bacteria have a generation
Q26: Which of the following bacteria can produce
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