KA2- Fermentation Flashcards
In the absence of oxygen, glucose can be partially broken down to yield what?
A net gain of 2 ATP
When does glucose yield a net gain of 2 ATP?
In the absence of oxygen
How does glucose yield a net gain of 2 ATP?
From the production of pyruvate in the cytoplasm by glycolysis
How many ATPs does aerobic respiration release?
38
What is needed to operate CAC and ETC?
Oxygen
In fermentation, where does pyruvate continue along?
An alternative metabolic pathway in the cytoplasm which keeps glycolysis running
What is pyruvate converted into in plants and yeast?
Ethanol and carbon dioxide
What is pyruvate converted into in animals?
Lactate
When is pyruvate converted into lactate?
When oxygen is unavailable creating an oxygen debt
When is the oxygen debt repaid?
When oxygen is available
What happens when oxygen debt is repaid?
Lactate is converted back into pyruvate
