Respiration Flashcards
Aerobic respiration
Requires oxygen, produced carbon dioxide, water and much ATP
Anaerobic respiration
Occurs in the absence of oxygen, prices lactate (in animals) or ethanol and carbon dioxide (in plants) but only a little ATP
Glycolysis
The splitting of the 6-carbon molecule into a 3 carbon pyruvate molecule
Link reaction
The conversion of the 3 carbon pyruvate molecule into CO2 and a 2-carbon molecule called acetylcoenzyme
Krebs cycle
The introduction of the acetylcoenzyme A into a cycle of oxidation-reduction reactions that yield some ATP and large number of electrons
Electron transport chain
The use of the elections produced in the Krebs cycle to synthesise ATP with water produced as by- product
Summary of products of respiration Glycolysis - ATP, NADH, FADH, CO2, H20 Link reaction Krebs cycle Electron transport chain
2, 2, 0, 0, 0
0, 2, 0, 2, 0
2, 6, 2, 4, 0
34, 0, 0, 0, 6
Comparison of ATP synthesis in mitochondria and chloroplasts
Mechanism
Mechanism
Mitochondria - uses energy carried by the electrons to pump protons across the membrane, they then flow back through stalked particles
Chloroplasts - uses electron energy to pump protons across the membrane, which then flow back through stalked particles