Which of the Following Is Not True of the Enzyme-Substrate

question 12

Multiple Choice

Which of the following is not true of the enzyme-substrate interaction?

• A)Many enzymes are extremely specific regarding a substrate.
• B)Many enzymes cannot recognize a stereoisomer of their substrate.
• C)Some enzymes accept any of a whole group of substrates.
• D)Carboxypeptidase recognizes any of the amino acids from the carboxyl end of a polypeptide.
• E)Cells are often able to carry out metabolic activity with only a handful of enzymes because many are nonspecific.

---

Definitions:

Digesting

The process of breaking down food into smaller components that can be absorbed into the bloodstream and used by the body.

Active Site

Region of an enzyme where the substrate binds and where the chemical reaction occurs.

Enzyme-Substrate Complex

The intermediate formed when an enzyme binds to its substrate molecule(s) before catalyzing a chemical reaction.

Enzymes

Proteins that catalyze biochemical reactions in living organisms, significantly speeding up the rate of virtually all of the chemical reactions that occur within cells.