Bacteria - Growth phase

Question 1

List the four phases of bacteria growth.

Answer 1

Lag
Log
Stationary
Decline

Question 2

Describe the lag phase of bacteria growth.

2 points

Answer 2

Bacteria adapt to their environment

Small increase in bacteria numbers

Question 3

Describe the log phase of bacteria growth.

2 points

Answer 3

Bacteria begin to multiply quickly due to ideal conditions

Rapid increase in bacteria numbers

Question 4

Describe the stationary phase of bacteria growth.

4 points

Answer 4

No increase in bacteria numbers
The production of new bacteria is equal to the number of bacteria dying
This is caused the plateau stage
Multiplying of bacteria begins to decrease due to a build up of toxins and competition for for resources

Question 5

Describe the decline phase of bacterial growth

2 points

Answer 5

Number of bacteria dying is greater than the number of bacteria being produced
Only a small amount of bacterial endospores survive and remain dormant