Exam 16: Amino Acids, Proteins, and Enzymes

Heavy metals denature proteins by ________.

Most enzymes are deactivated permanently above a temperature of about ________.

Which of the following is a secondary protein structure?

An enzyme that removes H atoms to form a double is a (an)

In insulin,two peptide chains are held together in a single unit by ________.

Hydrophobic interactions help to stabilize the ________ structure(s)of a protein.

The function of myoglobin is to ________.

Immunoglobulin,a protein that stimulates immune responses,would be classified as a ________ protein.

The attractive forces that are important in the secondary structure of a protein are ________.

To what main class of enzymes does the enzyme that catalyzes the following reaction belong? ser-ala → ser + ala

Which of the following functional groups of an amino acid would be in the ionized state at high pH?

The heme in hemoglobin is a(n)________.

The optimum temperature for most biological enzymes is ________.

In the ionized form of an amino acid,the carboxylic acid end is ________.

The structural formulas of amino acids are the same except for the ________.

The formation of an enzyme-substrate complex is the ________ step in enzyme action.

Disulfide bonds in a protein chain connect ________.

One heavy metal that can cause denaturation of a protein is ________.

Acids and bases denature a protein by disrupting ________.

Enkephalins,naturally produced opiates in the body,are found in ________.