Review on cellular respiration for bio 1108 exam

bio review 10/6
Cellular respiration: a collection of metabolic reactions within the cell that breaks down food
•molecules to produce energy in the form of ATP
-aerobic respiration- oxygen dependant
- anaerobic respiration- without oxygen

oxidation=losing electrons (becomes more positive)
- Electron donor
- The molecule being oxidized acts as a reducing agent to the other molecule
-




OIL RIG
•reduction=gaining electrons (becomes more negative-less positive lol)
- Electron being reduced acts as an oxidizing agent to the other molecule
*review cellular respiration formula*
Three steps of cellular respiration:
1. Glycolysis(not in mitochondria, occurs in cytoplasm)
2. Krebs cycle
3. Electron transport chain (in folds of mitochondria)

Glycolysis:
•Occurs in the cytosol/cytoplasm
•anaerobic process
•Breakdown of 1 glucose (6 carbon) into 2 pyruvate molecules(3 C each)
•Net ATP from glycolysis is going to be 2
•Atp synthesis via substrate level phosphorylation ( from one phosphate to another)
- P is transferred from high energy substrate to ADP as opposed to pi(inorganic
phosphate) being added to ADP
- From phosphate to ADP
•Net output of 2 ADP- makes four ATP but uses 2 atp to power the reaction

Pyruvate oxidation:
•Between glycolysis and krebs cycle