💊 PCAT Exam Prep

Chirality in pharmacology matters because:

A It does not matter
B Different enantiomers can have vastly different pharmacological effects, including toxicity
C All drugs are racemic
D Only R isomers are active

✓ Correct Answer: Option B

Thalidomide: one enantiomer therapeutic, the other teratogenic. Drug-receptor interactions are stereospecific.

💡 Why is B) the correct answer?

The correct answer to the question "Chirality in pharmacology matters because:" is Option B: Different enantiomers can have vastly different pharmacological effects, including toxicity.

The other options — A) It does not matter, C) All drugs are racemic, D) Only R isomers are active — are incorrect for this PCAT Exam Prep question. As explained above: Thalidomide: one enantiomer therapeutic, the other teratogenic. Drug-receptor interactions are stereospecific.

📚 About This PCAT Exam Prep Practice Question

This 2-level PCAT Exam Prep question from the Chemical Processes topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free PCAT Exam Prep practice test or use flashcards for spaced repetition review.

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