Question

Examine this reaction:

starch⟶amylasedisaccharides⟶disaccharidasemonosaccharides

If there is the normal amount of amylase present but less disaccharidase than usual, which of the following would most likely happen?

No starch could be broken down to disaccharides.
There would be less disaccharide and less monosaccharide produced.
The normal amount of disaccharide would be produced, but fewer monosaccharides would be produced.
There would be no overall impact because the normal amount of amylase is present.

Answer 1

The normal amount of disaccharide would be produced, but fewer monosaccharides would be produced.

Step-by-step explanation:

The first reaction, the conversion of starch into disaccharides, is catalyzed by the enzyme amylase. Since amylase is present in a normal amount, a normal amount of disaccharides will be produced.

In the second reaction, these disaccharides will be transformed into monosaccharides by a disaccharidase. However, since there is less disaccharidase, there will be fewer monosaccharides produced than if it was a normal amount of amylase.