Give four reasons why salivary amylase cannot act on proteins.

Expert Answers
trophyhunter1 eNotes educator| Certified Educator

The enzyme known as amylase acts on a specific substrate which is starch. The chemical reaction of starch begins in the mouth as it begins to hydrolyze into maltose, a sugar. Amylase, as all other enzymes, are very specific. One reason is that their 3-dimensional shape has a particular active site that binds to a substrate based on the molecular shape, much like a key fits to a particular lock. Other factors that affect enzyme specificity are charge as well as the hydrophilic and hydrophobic characteristics of both enzyme and substrate.

Access hundreds of thousands of answers with a free trial.

Start Free Trial
Ask a Question