Anaerobic Respiration Flashcards
1
Q
State the products of anaerobic respiration in yeast.
A
- Carbon dioxide
- Ethanol
2
Q
How is the rate of anaerobic respiration measured?
A
By counting the number of carbon dioxide produced in a minute
3
Q
Why is a layer of oil placed on top of the yeast suspension?
A
To prevent air from entering the suspension.
4
Q
How is temperature controlled?
A
Using a thermostatically controlled water bath.
5
Q
State a source of error in this practical.
A
The formation of carbon dioxide bubbles may be too rapid to be accurately counted.
6
Q
State the controlled variables of this practical.
A
● Volume and concentration of sugar solution
● Mass of yeast
● Time for counting bubbles
