Glycolysis

http://highered.mcgraw-hill.com/sites/0072507470/student_view0/chapter25/animation__how_glycolysis_works.html

Step 1

•2 ATP molecules donate 2 phosphates to the glucose molecule

•Glucose contains 6 carbon molecules

GlucoseC-C-C-C-C-C

2 ATP

P-C-C-C-C-C-C-P

6 carbon compound

Stage 2

After the phosphate has been added the entire glucose phosphate molecule gets reorganized to form a fructose phosphate molecule.

Step 2

•6 carbon molecule split into 2 molecules

P-C-C-C-C-C-C-P

6 carbon compound

PGAL

P-C-C-C C-C-C-P

Step 2

•6 carbon molecule split into 2 molecules

P-C-C-C-C-C-C-P

6 carbon compound

PGAL

P-C-C-C C-C-C-P

Step 3

2 NAD+

•The 2 molecules of PGAL join with 2 NAD+ ions•Forming 2 new 3C molecules

2 molecules of 3 Carbon compounds

P-C-C-C C-C-C-P

2 NADH +2H+

2 Phosphate

2 molecules of PGAL

P-C-C-C-P P- C-C-C-P

Step 4 4 ADP •4 molecules of

ADP combine with the 2- molecules from step 3•This produces pyruvic acid AND 4 ATD

2 molecules of 3 Carbon compounds

P-C-C-C-P P- C-C-C-P

4 ATP

2 molecules pyruvic acid

C-C-C C-C-C

Simply put- Glucose + 2 ATP = 2 Pyruvic acid + 4

ATP