Bioquimica

Student Worksheet

LSM 2.2-1

Glycolytic Pathway
Fill in the blanks on the right side of the worksheet and in the steps of glycolysis. Also fill in the molecule names A to F.

A.

1. Glucose Activation During the first four steps of glycolysis, are transferred to via is converted to , where . The end product is .

B.

C.

2. Sugar Splitting gets split into two fragments, and then gets converted into . .

3. Oxidation Both molecules of D. 2 releases 2 , which becomes become oxidized using . This process

, which is used to attach to the sugars, making them .

2

4. Formation of ATP During the last four steps of glycolysis, the groups of the molecules are transferred to ,

E.

2

creating

. This is done via the process of .

F.
Copyright © 2003 Nelson

2

carbon

oxygen

phosphate

Chapter 2 Cellular Respiration 43

Student Worksheet Solutions

LSM 2.2-2

Glycolytic Pathway, Solution
Fill in the blanks on the right side of the worksheet and in the steps of glycolysis. Also fill in the molecule names A to F.

A. glucose ATP ADP

1. Glucose Activation During the first four steps of glycolysis, two phosphate groups glucose via are transferred to ATP

phosphorylation , where ADP . The end product is .

is converted to B. glucose 6-phosphate

fructose 1, 6-bisphosphate

C. fructose 6-phosphate ATP ADP 2. Sugar Splitting Fructose 1, 6-bisphosphate fragments, and

gets split into two

dihydroxyacetone phosphate (DHAP) . DHAP

glyceraldehyde 3-phosphate (G3P) G3P .

then gets converted into

NAD NADH D. 1, 3-bisphosphoglycerate 2 ADP ATP 2 3. Oxidation Both molecules of G3P become oxidized using NADH . This process NAD , which becomes

releases energy , which is used to attach phosphates to the sugars, making them .

1, 3-bisphosphoglycerate

2

4. Formation of ATP During the last four steps of glycolysis, the phosphate groups of the molecules are transferred to ADP ,

E. phosphoenolpyruvate