Question

Shortly after adding C-14 labeled glyceraldehydes-3 phosphate to a yeast extract, fructose-1, 6- bisphosphate labeled at C-3 and C-4 can be isolated.

Where was the C-14 label in glyceraldehydes-3- phosphate?

Short answer

The answer is,

Labelled structure

Step-by-step solution

Explanation

The labelling of compounds can be used in experiments for the detection of compounds. In the case of experiments with compounds like isomers, the selective detection of the compounds using radioactive labelling is a common method.

Explanation

The mechanism for the conversion of fructose-1,6- bisphosphate to glyceraldehydes-3- phosphate and dihydroxyacetone phosphate, the mechanism of conversion of dihydroxyacetone phosphate to glyceraldehydes-3- phosphate helps to indicate the labelling of the carbon atom taken place in glyceraldehydes-3-phosphate as shown below.

Labelled structure