Carbohydrate Digestion...Humans vs Bacteria
HO
H
Lactose = (ß)galactose-glucose.
The lactose-digesting enzyme,
lactase, fits this molecule.
 
“Lactaid” is prepared by purifying
this enzyme.
H
Glucose
simplified
Glucose
We’ll use a simplified picture
of the sugar molecule...
“Bean sugar” = (a)galactose-glucose (or other sugars).
A specific enzyme fits this molecule.
 
“Beano” is prepared by purifying this enzyme.
Cellulose is a polymer of (ß) glucose.
The cellulose-digesting enzyme, cellulase,
fits this molecule.
Starch is a polymer of (a)glucose. The starch-
digesting enzyme, amylase, fits this molecule.
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