Cellular Respiration Flashcards
Where does cellular respiration take place
Mitochondria
Equation
C6H12O6 + O2 > CO2 + H2O + ATP
Glucose + oxygen > carbon dioxide + water + energy
Aerobic
With oxygen
Anaerobic
Without oxygen
Aerobic cellular respiration stages
1) glycolysis
2) pyruvate oxidation and the citric acid cycle
3) oxidative phosphorylation
Anaerobic cellular respiration stages
1) glycolysis
2) fermentation
Glycolysis occurs in the
Cytoplasm
Glycolysis breaks down
1 molecule of glucose into 2 molecules of pyruvate
Glycolysis
2 molecules of NAD+
Are reduced to 2 molecules of NADH
NADH is an enzyme which is
An electron carrier
Glycolysis
ATP
2 ATP molecules are produced
4 are made but I️t takes 2 to break glucose
Pyruvate oxidation
1) Carboxyl group is removed and given off CO2
2) coenzyme A joins with the 2 carbon group to form Acetyl CoA
3) NAD+ reduced to NADH
Citric acid cycle
Kreb cycles
1) 2 carbon group of Acetyl CoA is added to a 4 carbon compound forming citrate
2) CO2 releases
3) 1 ATP, 3 NADH, 1 FADH2 are produced
Oxidation Phosphorylation
1) electrons from NADH & FADH2 travel down the electron transport chain to O2
2) oxygen picks up a H+ to make water
3) chemosynthesis- energy released is used to pump H+ back across the inner membrane through ATP synthase
4) 32-34 molecules of ATP are made