Bio 20 2.1

Front 1

chemical reaction for aerobic respiration

Back 1

C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy (ATP)Glucose + oxygen yields carbon dioxide + water + Energy (ATP)

Front 2

Aerobic respiration

Back 2

• Aerobic respiration is a process by which cells breaks down glucose in the presence of oxygen (hence the term aerobic)• Aerobic respiration occurs in the cytoplasm (first steps) and in the mitochondria (last steps)

Front 3

Aerobic respiration has four stages

Back 3

• Aerobic respiration has four stages– 1. Glycolysis– 2. Preparatory reaction– 3. Citric acid cycle– 4. Electron transport chain

Front 4

Glycolysis

Back 4

– Glucose is converted to 2 3-carbon molecules – ATP and an electron carrier are formed– Occurs in the cytoplasmATP is formed– Only a small amount of energy is producedElectron carriers are formed- These are important in the last steps of respirationGlycolysis - means 'sugar splitting'

Front 5

Preparatory reaction and citric acid cycle

Back 5

The 3-carbon molecules are ultimately converted to carbon dioxide• Carbon dioxide is a waste product– Electron carriers are produced– Occurs in the mitochondrion

Front 6

Electron Transport Chain

Back 6

– Electron carriers are used to produce ATP– Water is produced as a byproduct– Occurs in the mitochondrion