12.1: Glycolysis

Question 1

Process of Glycolysis

Answer 1

1. Glucose is phosphorylated to Phosphorylated Glucose by the hydrolysis of two ATP molecules to provide 2 phosphate molecules.
2. Phosphorylated Glucose is split into two 3-carbon molecules known as Triose Phosphate
3. Triose Phosphate is oxidised (hydrogen is removed and NAD accepts it)
4. Each oxidised triose phosphate molecule is converted into another 3 carbon molecule known as Pyruvate. In this process, 2 molecules of ATP regenerated.

Question 2

Energy yields from Glycolysis

Answer 2

1. Two molecules of ATP (4 produced, but 2 used in the phosphorylation of glucose)
2. Two molecules of Reduced NAD for use in oxidative phosphorylation
3. Two molecules of Pyruvate for the Link Reaction

Question 3

Site of glycolysis

Answer 3

Glycolysis takes place in the Cytoplasm

Question 4

Glycolysis occurs in..

Answer 4

Occurs in both aerobic and anaerobic respiration