Question
Arrange the phases of bacterial growth in correct order : A. Stationary phase Choose the correct answer from the options given below :
B. Lag phase
C. Log (exponential) phase
D. Death phase
E. Inoculation into fresh medium
The correct answer is
E, B, C, A, D
Bacterial Growth Phases Order
The growth of a bacterial population in a closed system follows a predictable pattern known as the bacterial growth curve. Arranging the given stages in their correct chronological order is essential for understanding microbial dynamics.
Growth Phase Sequence
- E. Inoculation into fresh medium: This is the starting point where bacteria are introduced into a new environment suitable for growth.
- B. Lag phase: Following inoculation, bacteria initially adapt to the new medium. During this phase, there is little or no increase in cell number as the cells prepare for division.
- C. Log (exponential) phase: Once adapted, bacteria begin to divide rapidly. The population size increases exponentially, doubling at a constant rate.
- A. Stationary phase: The growth rate slows down and eventually equals the death rate. This occurs as nutrients become depleted and waste products accumulate, limiting further exponential growth.
- D. Death phase: Conditions become unfavorable, leading to a decline in the viable bacterial population. The death rate exceeds the growth rate.
Therefore, the correct sequence of the bacterial growth phases is E, B, C, A, D.
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Important Questions from Miscellaneous
- Which of the following scheduler/schedulers is/are also called CPU scheduler ?
(A). Short Term Scheduler
(B). Long Term Scheduler
(C). Medium Term Scheduler
(D). Asymmetric Scheduler
Choose the correct answer from the options given below: - A situation where two or more processes are blocked, waiting for resources held by each other is called:
- External fragmentation occurs ________.
- Which disk scheduling algorithm looks for the track closest to the current head position?
- Which CPU scheduling algorithm prefers the process with the shortest burst time?
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