A 01 Ml Sample of a Log Phase Culture Contains 10,000

question 57

Multiple Choice

A 0.1 ml sample of a log phase culture contains 10,000 bacterial cells/ml.It is added to 9.9 ml of fresh culture medium broth.Assume a generation time of 30 minutes,and no limiting nutrients.How many bacteria will be present in the entire broth culture after five hours?

• A) 3.2 × 104
• B) 5.0 × 105
• C) 1.02 × 106
• D) 6.0 × 106
• E) 2.56 × 107

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Definitions:

Propanenitrile

An organic compound with the formula CH3CH2CN, also known as ethyl cyanide, a colorless liquid used as a solvent and in organic synthesis.

Boiling Point

The temperature at which a liquid's vapor pressure equals the external pressure surrounding the liquid, causing it to turn into a vapor.

Propanamide

An organic compound consisting of a propyl chain attached to a nitrogen atom of an amide group.

N-Methylacetamide

An organic compound characterized by a methyl group attached to the nitrogen atom of an acetamide.