glycolysis Flashcards
1
Q
what is the starting molecule in glycolysis?
A
glucose (6 carbon)
1
Q
where does glycolysis occur?
A
- aerobic and anaerobic respiration
- in the cytoplasm
2
Q
what is the first stage in glycolysis from glucose?
A
- phosphorylation of glucose
- glucose uses 2 ATP molecules to add 2 phosphates
- forming hexose bisphosphate
3
Q
what is the second stage in glycolysis from hexose bisphosphate?
A
- hexose bisphosphate splits as it is unstable
- forming 2 molecules of triose phosphate
4
Q
what is the third stage in glycolysis from triose phosphate?
A
- inorganic phosphate ions are added from the cytoplasm
- forming 2 molecules of triose bisphosphate
5
Q
what is the fourth stage of glycolysis from triose bisphosphate?
A
- oxidation
- phosphate groups are removed
- 4 molecules ATP released
- 2 molecules reduced NAD released
- 2 molecules pyruvate formed
6
Q
state the 3 stages of glycolysis
A
- phosphorylation of glucose
- production of triose phosphate
- oxidation of triose phosphate to pyruvate
7
Q
what are the products of glycolysis?
A
2 reduced NAD
2 pyruvate
net gain 2 ATP
8
Q
what happens to the products of glycolysis?
A
actively transported into mitochondrial matrix for oxidative phosphorylation and Krebs cycle
