NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which growth phase includes an exponential growth due to the reproduction by binary fission (bacteria) or mitosis (yeast).
A
lag phase
B
log phase
C
stationary phase
D
prolonged death phase
Explanation: 

Detailed explanation-1: -Exponential (Log) Phase: After the lag phase, bacterial cells enter the exponential or log phase. This is the time when the cells are dividing by binary fission and doubling in numbers after each generation time.

Detailed explanation-2: -Log Phase. Soon after the lag phase, i.e., the preparation phase, the bacterial cells enter the log phase. The log phase is also known as the exponential phase.

Detailed explanation-3: -Bacteria replicate by binary fission, a process by which one bacterium splits into two. Therefore, bacteria increase their numbers by geometric progression whereby their population doubles every generation time.

There is 1 question to complete.