You Have Severe Itching Problems When Bitten by an Insect

question 83

Multiple Choice

You have severe itching problems when bitten by an insect.Your friend gives you an ointment to spread on your skin around the bite so that the redness and itching do not bother you.The likely mechanism of this medication would be

• A)the inactivation of neutrophils.
• B)the destruction of phagocytic cells.
• C)to act as an antagonist of histamine.
• D)the inhibition of lysozyme.

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Definitions:

Quaternary Structure

The overall conformation of a protein produced by the interaction of two or more polypeptide chains. Compare with primary, secondary, and tertiary protein structure.

Polypeptide Chains

Long chains of amino acids linked by peptide bonds, which fold into specific three-dimensional structures to form proteins.

Steroid Hormone

A type of hormone derived from cholesterol that can pass through cellular membranes and is involved in a wide range of bodily functions.

Nucleic Acid

Organic molecules that serve as the blueprint for proteins and, through the actions of proteins, the entire phenotype of a living organism; includes DNA and RNA.