Exam 13: Proteins: Structure and Function

Inflammation and pain caused by injury results from the production of molecules called prostaglandins. Aspirin and other anti-inflammatories work by binding to the active site of an enzyme that produces the prostaglandins, thus preventing their synthesis. What type of molecule is aspirin?

How is the following amino acid classified?

Which of the following types of proteins defend the body against infectious agents?

What type of interaction would you expect between the following R groups in the tertiary structure of a protein?

Which side chain would most likely be involved in hydrogen bonding?

What is the relationship between the following two molecules?

Which of the following amino acids can form a disulfide bridge?

In the peptide Ser-Gly-Asp-Ala, the N-terminal amino acid is

Alpha-helices and β-pleated sheets are both examples of

The following table lists several common vegetarian foods and the amino acids that they are missing. Which of the following combinations supply a complete protein when consumed together?

Which of the following statements best describes the naming convention for peptides?

Tamoxifen is a drug used to prevent recurrence of certain types of breast cancers that require estrogen to grow. Tamoxifen binds to the active site of the estrogen receptor protein, preventing estrogen from binding to the enzyme. Once Tamoxifen binds to the protein, the protein is permanently deactivated. Which of the following descriptions best fits Tamoxifen?

Which of the following is the proper amino acid chain designator of the peptide below? I. Val-Ser-Ala II. Ser-Ala-Val III) Ala-Ser-Val

The structure of myoglobin is shown below. Which level of architecture does this protein lack?

A protein's native conformation is

What is the relationship between the following two molecules?

When two amino acids react to form a new amide functional group, the reaction is referred to as a(n)

What type of bond is a peptide bond?

How is the following amino acid classified?

Amino acids that are not synthesized in the body and must be obtained from the diet are called