Which of the Following Statements Is Correct for Protein Structure

question 4

Multiple Choice

Which of the following statements is correct for protein structure?

• A)The a helix is stabilized primarily by ionic interactions between the side chains of amino acids.
• B)Disulfide bonds are common in cytoplasmic proteins but are not present in most proteins of the extracellular matrix.
• C)The stability of the quaternary structure in proteins is a result of covalent bonds between the subunits.
• D)The heat denaturation of proteins is in most cases reversible by slow cooling.
• E)Glycine and proline do not usually participate in a-helical structures.

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Definitions:

Retained Earnings

The amount of net earnings left in the company after dividends are paid out to shareholders, used for investment or to pay off debt.