Respiration 1 - A2

Aerobic => Oxygen
Anaerobic => Turns glucose into lactate (when in animals), and into ethanol and CO2 (when in yeast, etc.)

Oxidation is the:

• Gain of Oxygen
• Loss of Electrons
• Loss of Hydrogen

Reduction is the:

• Loss of Oxygen
• Gain of Electrons
• Gain of Hydrogen

Reducing Agent means the thing that is oxidised, and that caused reduction by being an electron donator.
Oxidising Agent means the thing that is reduced, and that caused oxidation by being an electron acceptor.

Co-enzymes
NAD - Nicotamine Adenine Dinucleotide
FAD - Flavine Adenine Dinucleotide
Co-enzymes are a carrier of hydrogen molecules from one molecule to the other. They work in assistance with dehydrogenase enzymes which catalyse hydrogen removal.

When NAD picks up Hydrogen,
NAD + 2H+ => NADH2
The NADH2 is the reduced form as it has GAINED Hydrogen.


The stages of Aerobic respiration

1. Glycosis -> Takes place in the CYTOPLASM, Aerobic and Anaerobic.
2. Link Reaction -> Takes place in the Mitochondria (MATRIX), Aerobic.
3. Krebs Cycle -> Takes place in the Mitochondria (MATRIX), Aerobic.
4. Oxidative Phosphorylation -> Takes place in the Mitochondria (INNER MITOCHONDRIAL MEMBRANE), Aerobic.