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The specific growth rate (µ) of a microorganism in death phase is
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- 0 (zero)
- µmax
- less than zero
- greater than zero
Correct Option: A
Specific growth rate is defined as the increase in cell mass per unit time. In death phase, no cellular growth is observed. During this, the cell population continuously decreases with time and the population is said to have entered into death phase of the growth cycle. Therefore the value of specific growth constant for death phase is zero.