fermentation

Question 1

what is fermentation?

Answer 1

1. anaerobic cellular respiration -chemical breakdown of glucose when not enough oxygen is present.
2. produces less ATP per molecule of glucose than aerobic respiration
3. the first step of any fermentation process is glycolysis
4. alcohol fermentation, lactic acid fermentation
5. 2 ATP produced

Question 2

what is alcohol fermentation

Answer 2

1) occurs in yeast or plants
2) involves glycolysis
2 pyruvate + 2 NADH -> 2 CO2 + 2 ethanol + 2 NAD+

Question 3

what is lactic acid fermentation?

Answer 3

1) occurs in human cells, animal cells.
2) involves glycolysis
3) enzymes present in some eukaryotic cells like human muscle tissue convert pyruvate to lactate.
2 pyruvate + 2 NADH -> 2 lactate + 2 NAD+