anaerobic respiration

what do plants and yeast produce in anaerobic respiration?

ethanol

what do mammals produce in anaerobic respiration?

lactate

what are the two stages of anaerobic respiration?

1. glycolysis

2. fermentation

describe the process of glycolysis. (4)

1. phosphorylation of glucose using ATP

2. oxidation of triose phosphate to pyruvate

3. net gain of 2 ATP

4. NAD reduced

describe fermentation in plants and yeast

1. pyruvate + NADH → ethanol + NAD + CO2
2. pyruvate loses 1 carbon in the form of carbon dioxide
3. pyruvate accepts H+ from reduced NAD, this forms ethanol

describe fermentation in mammals

1. pyruvate gains H+ from NADH

2. NAD can return to be used in glycolysis

does fermentation produce ATP?

no

lactate can affect enzymes active site shape, why?

lactate is acidic so it will cause blood pH to drop