Learn the toughest concepts covered in Microbiology with step-by-step video tutorials and practice problems by world-class tutors.

10. Dynamics of Microbial Growth

1

Direct Microscopic Cell Counts

3m

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2

Problem

Direct microscopic cell counting is a method where the microbiologist counts the number of microbes in a fraction of the microbial culture to:

A

Determine the cell count for the entire microbial culture.

B

Determine the growth rate of the microbial culture.

C

Determine the death rate of the microbial culture.

D

Estimate how large the microbial culture will grow in 10 generations.

3

Types of Direct Cell Counting Instruments

2m

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4

Problem

Determining the number of cells within a culture is important. However, counting each and every cell with the human eye is tedious and extremely time consuming. Which of these is a method of cell counting that does not require a scientist to count each and every cell?

A

Flow cytometry.

B

Direct microscopic cell counting.

C

Coulter counting.

D

A and B.

E

A and C.

F

B and C.