An Overview of Cellular Respiration

Cellular Respiration- Is the harvesting of energy to form ATP from the breakdown of Glucose

I. Summary Equation



II. 2. Stages
         A. Glycolysis- splitting Glucose into 2 molecules (Happens in the cytoplasm)
         B. Oxidation- stripping electrons off (Happens in the mitochondria)

Overview of Aerobic Respiration

Between Glycolysis and the Krebs Cycle a Process called Pyruvate Oxydation occurs producing Acetyl-CoA and NADH and CO2

III. Glycolysis

     !. Takes place in the cytoplasm

     2. Occurs in the presence or absence of oxygen

     3. Involves ten enzyme-catalyzed reactions (Don't need to know all of them just know there are 10)

     4. Broken down into 2 molecules of pyruvate

     5. Steps

         A. Glucose is converted to a 6-C diphosphate. This uses 2 ATP's

         B. The 6-C molecule is broken down into 2, 3-C molecules

         C. The 2, 3-C sugars are converted to Pyruvate, gaining 4 ATP and 2 NADH

NAD+ + H+ + 2e- ----------> NADH

IV Pyruvate Oxidation

2 Pyruvate is converted into 2 Acetyl Co-A. 1 Carbon is stripped off (2 CO2) and 1 NADH per pyruvate is formed. This happens in the Mitochondria

You can use Acetyl Co-A to make either fat, or more ATP or some Proteins

Mitochondrial Structure