3 similarities and 3 differences between photosynthesis and

respiration

Objectives

E – Define keywordsC – Describe overall process of

respirationA – Explain in full respiration and the stages of both anaerobic and aerobic

respiration

Glycolysis - OxidationGlucose

NAD

NADH

ADP

ATP

Pyruvate

Krebs cycle

•3 molecules NADH and FADH2 produced

•Electron transfer chain

•High energy electrons brought in from glycolysis

•H+ + 1/2O2 + 2e-

•38 molecules ATP

Fermentation

• Anaerobic respiration

• Occurs when oxygen is limited

NAD is oxidised

• Hydrogen combines with pyruvate

• Forming :-

lactate in animals

ethanol in plants / fungi

Glycolysis can continue…

• Producing some ATP

• Forming 2 ATP per glucose molecule

• Compared with 38 ATP per glucose molecule with aerobic respiration