How many pyruvate molecules are produced per glucose molecule during glycolysis?

Answer 1

Glucose contains six carbon atoms, whereas pyruvate only contains three, so it is possible to derive two pyruvate molecules (3+3 carbon atoms) from one glucose molecule (=6 carbon atoms).

During the early stages of glycolysis, the glucose is converted into Fructose-1,6-bisphosphate. This molecule also has six carbon atoms, and is split by an enzyme called 'fructose biphosphate aldolase' into two separate molecules containing three carbon atoms: glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. It is the glyceraldehyde-3-phosphate that is later converted into pyruvate, accounting for the first pyruvate molecules from glucose. However, the other 3-carbon molecule, dihydroxyacetone phosphate, is kept in equilibium with glyceraldehyde-3-phosphate by an enzyme known as 'triose phosphate isomerase', so that this is eventually converted into pyruvate as well. The result being two pyruvate molecules per glucose molecule.

Answer 2

1 glucose can be broken down into 2 pyruvates.

hence, 2 pyruvates equal to one glucose.

Answer 3

during glycolosis, a net production of 2 ATP, 2 pyruvate, and 2 nadh molecules are created.

Answer 4

Two pyruvate molecules are produced per glucose molecule.

Answer 5

When glucose splits, it makes 2 piruvates that each have 3 carbon atoms . One turn of the Krebs Cycle breaks down only one pyruvate, so two turns are needed to break down the 2 piruvates.

Answer 6

two

Answer 7

Glycolysis.

Answer 8

2