N5S3 - Fermentation Flashcards
1
Q
What is fermentation?
A
Fermentation is the break down of glucose to produce substances that can be used to make chemical energy.
2
Q
Does fermenation occur in the absence or presence of oxygen?
A
The absence of oxygen
3
Q
How much ATP does fermentation produce?
A
2 molecules
4
Q
What does pyruvate turn into in animals cells and in plant/yeast cells in the absence of oxygen?
A
ANIMAL- Lactate
PLANT - Carbon dioxide and Ethanol.
5
Q
What is the word equation for the breakdown of glucose in ANIMAL cells without oxygen?
A
Fermentation
glucose ⇌ lactate + energy
(reversible)
6
Q
What is the word equation for the fermentation of glucose in PLANT/YEAST cells?
A
glucose → carbon dioxide + ethanol + energy
(irreversible since CO₂ diffuses away)
