Respiration: the break down of sugar to release usable cellular energy (ATP)
Types
Aerobic: with oxygen
Anaerobic: without oxygen
All cellular respiration pathways begin withglycolysis
Definition: thebreakdown of glucose
Overall reaction: Glucose + 2 ATP -> Pyruvate + 4 ATP
Anaerobic cellular respiration (fermentation)
Alcoholic Fermentation:
Pyruvate -> Acetaldehyde + CO2(decarboxylation)
Acetaldehyde + NADH -> Ethanol + NAD+
Lactic acid fermentation:
Pyruvate + NADH -> Lactic acid + NAD+
Occurs in muscle cells during oxygen debt
Can be reversed in the presence of oxygen
