THE BIG PICTURE:

AEROBIC CELLULAR RESPIRATION

GLYCOLYSISGlucose, a six-carbon sugar, is broken

into two, three-carbon molecules of pyruvate.

THE KREBS CYCLEFurther breaks down pyruvate, and

stores energy by reducing NAD+ and FAD

THE ELECTRON TRANSPORT CHAIN

Uses NADH and FADH2 to transport protons across the inner mitochondrial

membrane, in order to make ATP.

NET GAIN PERGLUCOSE

2 ATP2 NADH

NET GAIN PERGLUCOSE

8 NADH2 FADH2

2 ATP

NET GAIN PERGLUCOSE

About 34 ATP

glucosepyruvate

pyruvate

acetyl CoA

acetyl CoA

reducedcompounds

ETC

protongradient

ATPsynthase

TH

E K

RE

BS

CY

CL

E

1

2

3

45

6

7

THE BIG PICTURE:

LACTIC ACID FERMENTATION

GLYCOLYSIS

2 ADP

2 ATP

2 pyruvate

2 NAD+2 NADH

2 lactic acid(ouch!)

THE BIG PICTURE:

ALCOHOL FERMENTATION

GLYCOLYSIS

2 ADP

2 ATP

2 pyruvate

2 acetylaldehyde

2 NAD+2 NADH

2 Ethanol(mmm…)

2 CO2