Ch 9 - Specific Review

Oxidation

loses electrons

Reduction

gains electrons

Redox

oxidation and reduction (must) happen together

Electron Carriers in Cellular Respiration

• NADH

• FADH2

Electron Acceptors in Cellular Respiration

H2O

Purpose of the ETC

to create a gradient of H ions in the intermembrane space

Purpose of Cellular Respiration

to generate ATP

Fermentation

• anaerobic catabolism of sugars

• lactate or ethanol

• produces less energy than aerobic

Acetyl CoA

pyruvate goes in → becomes acetyl CoA → 1 ATP, 3 NADH, 1 FADH2, and 2 CO2 are formed

Chemiosmosis

consists of the coupling of the redox reactions of the ETC to ATP synthase by oxidative phosphorylation

Krebs Cycle output per Pyruvate

• 1 ATP

• 4 NADH

• 1 FADH2

• 3 CO2