Glycolysis and Cellular Respiration:Breaking Down Glucose to Make ATP

In the cytoplasm…

• Glycolysis: “breaking glucose”– breaks glucose in half, into two molecules

called pyruvate. (makes 2 ATP)

C C C becomes C – C- C + C- C- C +

Pyruvate PyruvateC C C

ATP

ATP

In the Cytoplasm…• Pyruvate Oxidation (intermediate step)

– Pyruvate is broken down by an enzyme called Coenyzme A

– It becomes Acetyl CoA + Pyruvate

CoenzymeA

Acetyl-CoA

In the Mitochondria

Acetyl CoA

Gets Broken down

And LOTS of e- come out and go into the

electron transfer chain

KREBS CYCLE

ATP

ATP

NAD+NADH

Energized Electrons!!

CO2

In the membrane of the mitochondria

NADH

Electron Transport chainH+

H+

H+

H+

H+ATP

O2water

ATP

ATP

ATP

ATP

water

water

water

water