1. Glycolysis in cytoplasm
glucose 6C
ADP+Pi
ADP+Pi
ATP
ATP H2 H2
NAD
NAD
NADH2
NADH2
pyruvic acid 3C
pyruvic acid 3C

2. Citric Acid Cycle pyruvic acid 3C in matrix of mitochondrion H2 NAD
CO2 1C
NADH2
acetyl (2C)co-enzyme A
oxaloacetic acid 4C
citric acid 6C
Kreb’s cycle
2CO2
2 x 1C
4H2
4NAD
4NADH2

3. Cytochrome System on cristae of mitochondrion ATP ATP ATP NADH2 H2 H2
oxygen
water
NAD
This process happens once for each of the 12XH2 produced from 1 molecule of glucose
=cytochrome

4. Other Respiratory Substrates
fats
fatty acids
acetyl 2C co-enzyme A
to Kreb’s cycle
+ glycerol
pyruvic acid
proteins
amino acids
( some)
pyruvic acid
acetyl 2C co-enzyme A
to Kreb’s cycle

5. Homework E class – Due Monday 21st Nov C class – Due …
Respiration and
enzymes
2007
A 1-6 B2
2008
A 1-4
2009 B4
2010
A 1-5