NEET 2002 Biology question

Choose the correct sequence of stages of growth curve for Bacteria : -

(1)Lag, Log, Stationary, Decline phaseCorrect
(2)Lag, Log, Stationary phase
(3)Stationary, Lag, Log, Decline phase
(4)Decline, Lag, Log phase

Answer: (1)

Solution

A bacterial population grown in a closed (batch) culture shows a sigmoid growth curve with four successive phases: (i) lag phase - cells adapt to the medium, little division; (ii) log (exponential) phase - rapid division at a constant rate;

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Question ID VK-089053