1. Cell Metabolism
Mader Chapter 3.3

2. Organismal vs. cellular respiration

3. Enzymes are proteins that catalyze chemical reactions in cells.
Enzymes combine temporarily with specific substrates to facilitate
a reaction and they are released at the end of the reaction, unchanged.

4. The mitochondrion – site of oxidative metabolism

6. Oxidation of glucose 6 2 34 2 NAD+ 2e-  NADH2 2 + 2 + 34 = 38 ATP
Matrix
Inner Memb. 6 2 34 2
NAD+ 2e-  NADH2
= 38 ATP

7. Exercise (aerobic & anaerobic)

9. Anerobic – fermentation of glucose (0xygen debit)
LIVER
MUSCLE
ATP
H2O
CO2
Glucose
Blood
When muscle operates anaerobically, glycolysis generates NADH2
NAD is regenerated by putting the H2 on pyruvic acid making lactic acid.
When oxygen becomes available, lactic acid is converted to pyruvic acid in the liver. The puruvic acid is metbolized to CO2 & H20 and ATP is generated