In measuring turbidity of a culture in indirect measurement of bacterial growth,absorbance and transmittance are identical and interchangeable values.

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Quizplus · Accepted Answer

Absorbance and transmittance are not identical and interchangeable values. Absorbance is the measure of how much light is absorbed by a sample, whereas transmittance is the measure of how much light passes through a sample. In turbidity measurement, the more bacteria in a culture, the higher the absorbance and the lower the transmittance.

In Measuring Turbidity of a Culture in Indirect Measurement of Bacterial