Population

Question 1

Do bacteria or yeast grow easily not easily or do they grow fast or slowly?

Answer 1

They are both easy to grow + they grow fast

Question 2

Name the 4 phases of cell growth

Answer 2

1. Lag phase
2. Exponential phase
3. Stationary phase
4. Death phase

Question 3

What does lag phase mean?

Answer 3

When there are not many cells to reproduce and they are having to adapt to the conditions

Question 4

What does the exponential phase mean?

Answer 4

It’s when the birth rate exceeds the death rate. Conditions are ideal and nutrients are in excess

Question 5

What does stationary phase mean?

Answer 5

When the space and nutrients starts to run out and there’s competition for resources. The birth rate is equal to death rate

Question 6

What does the death phase mean?

Answer 6

When the conditions become toxic (due to CO2 build up on alcohol). Nutrients run out and cells die