FPGEE Pharmaceutical Chemistry 3

Question 1

The log P value of a drug compound represents:

Accepted Answer

The partition coefficient between octanol and water

Answer

Log P (partition coefficient) measures how a drug distributes between n-octanol (lipid) and water, indicating its lipophilicity.

Question 2

Glucuronidation is an example of which type of drug metabolism?

Accepted Answer

Phase II conjugation

Answer

Glucuronidation is a Phase II conjugation reaction catalyzed by UDP-glucuronosyltransferases, adding glucuronic acid to the drug.

Question 3

Which spectroscopic technique is most useful for determining the complete carbon-hydrogen framework of an organic drug molecule?

Accepted Answer

Nuclear magnetic resonance (NMR) spectroscopy

Answer

NMR spectroscopy provides detailed information about the carbon-hydrogen framework, connectivity, and stereochemistry of organic molecules.

Question 4

Warfarin exists as two enantiomers. The S-enantiomer is approximately 5 times more potent than the R-enantiomer. This difference is an example of:

Accepted Answer

Pharmacodynamic stereoselectivity

Answer

When enantiomers differ in pharmacological potency at a receptor, this reflects pharmacodynamic stereoselectivity due to chiral receptor binding sites.

Question 5

Which of the following best describes a bioisostere?

Accepted Answer

A group that replaces another with similar size and electronic properties but potentially different pharmacokinetics

Answer

Bioisosteres are atoms or groups that can replace each other while maintaining similar biological activity through comparable size, shape, and electronic properties.

FPGEE Exam Practice Test

FPGEE Exam Practice Test

FPGEE Pharmaceutical Chemistry 3