Question

Choose the correct sequence of stages of growth
curve for bacteria
(a) Lag, log, stationary, decline phase
(b) Lag, log, stationary phase
(c) Stationary, lag, log, decline phase
(d) Decline, lag, log phase

Answer 1

Answer:

d is the correct answer

Answer 2

Growth curve of Bacteria:

• Option “A” is correct i.e. Lag phase, log phase, stationary phase, & decline phase.

• The bacterial growth curve signifies the number of live cells in a bacterial population over a period of time. There are 4 distinct phases of the growth curve: lag, exponential (log), stationary, and death.  

• The early phase is the lag phase where bacteria are active metabolically but not dividing. In the second phase, bacteria divide rapidly. In the third phase, the growth rate is equal to the decline phase and in 4th phase growth rate stops and it starts declining.

Hope it helped.....