Population Flashcards
(6 cards)
1
Q
Do bacteria or yeast grow easily not easily or do they grow fast or slowly?
A
They are both easy to grow + they grow fast
2
Q
Name the 4 phases of cell growth
A
- Lag phase
- Exponential phase
- Stationary phase
- Death phase
3
Q
What does lag phase mean?
A
When there are not many cells to reproduce and they are having to adapt to the conditions
4
Q
What does the exponential phase mean?
A
It’s when the birth rate exceeds the death rate. Conditions are ideal and nutrients are in excess
5
Q
What does stationary phase mean?
A
When the space and nutrients starts to run out and there’s competition for resources. The birth rate is equal to death rate
6
Q
What does the death phase mean?
A
When the conditions become toxic (due to CO2 build up on alcohol). Nutrients run out and cells die
