Carbohydrate metabolic enzymes bind D-glucose specifically.D-glucose has an estimated caloric value of 1 kcal per 4 grams of carbohydrate.Based on the methods used to convert the energy of D-glucose into a useable form,what would you estimate the caloric value of L-glucose to be using the same method?
A)1 kcal per 4 grams
B)1 kcal per 2 grams
C)1 kcal per 8 grams
D)0 kcal per 4 grams
E)2 kcal per 8 grams

Question

Quizplus · Accepted Answer

Carbohydrate metabolic enzymes are specific to D-glucose and cannot utilize L-glucose. Therefore, L-glucose has zero caloric value in the body as it cannot be metabolized.

Carbohydrate Metabolic Enzymes Bind D-Glucose Specifically