Exam 20: Enzymes

Enzymes are proteins that speed up a chemical reaction; inhibitors slow down chemical reactions.

Chymotrypsin, an enzyme that cleaves peptide linkages, would be classified as a(n)_____ .

Enzymes increase the rates of only certain reactions involving certain substances. This general characteristic is called ____.

An ACE inhibitor is a medication that is used to block the activity of angiotensin-converting enzymes, helping to reduce blood pressure.

The synthesis of an enzyme in response to a cellular need is called

A zymogen is correctly classified as a(n)

Enzymes which are affected by the binding of modulators are called

Enzymes, being proteins, are sensitive to the temperature and will be denatured by high temperatures.

Which disease is attributed to the lack of enzyme?

When enzyme activity is graphed versus the following, which graph is a straight line?

The following represents the results of an experiment on a metabolic enzyme. What is the optimum pH of this enzyme?

Which of the following enzyme properties is explained by the lock-and-key model?

Sulfanilamide prevents bacterial growth because it functions as a competitive inhibitor.

The lock-and-key theory is the explanation of how a coenzyme functions to modify the substrate which provides a specific product.

Insulin is initially produced as proinsulin, an inactive form that contains extra amino acid residues.  Proinsulin must be an apoenzyme.

Isoenzymes vary from each other because they contain different isotopes of elements like carbon, nitrogen, oxygen and sulfur.

Substrate concentration has what effect on the rate of an enzyme catalyzed reaction?

The conditions required for maximum enzyme function are called

In the diagram, which number would represent V _max?

​ D-amino acid oxidase does not catalyze the reactions of L-amino acids. This is an example of _____ _____.