CH16 Glycolysis Stage 2 Flashcards
1
Q
What is the purpose of the 2nd stage of glycolysis?
A
oxidation of 3C fragments to yield ATP.
2
Q
Step 6 - Glycolysis
A
GAP to 1,3-bisphosphoglycerate (1,3-BPG)
3
Q
Step 6 uses ___ and ___ to make ___ and ___.
A
NAD+ and Pi
NADH and H+
4
Q
What are the 2 steps that occur in the formation of glyceraldehyde 1,3-bisphosphate?
A
- highly exergonic oxidation of C1 in GAP to acid.
2. highly endergonic formation of glyceraldehyde 1,3-bisphosphate from acid.
5
Q
The two rxn’s that form glyceraldehyde 1,3-bisphosphate are linked by?
A
formation of E rich thioester in active site of glyceraldehyde 3-phosphate dehydrogenase.
6
Q
_____ is coupled to _____ of G3-P by a _____.
A
Phosphorylation
Oxidation
Thioester Intermediate
7
Q
The rxn mech of G3-P Dehydrogenase consists of what 4 steps?
A
- GAP reacts w/ cysteine to form hemithioacetal
