The main mechanism of most drugs absorption in GI tract is:

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Pharmacology Across the Lifespan ATI Quizlet Questions

Question 1 of 5

The main mechanism of most drugs absorption in GI tract is:

Correct Answer: D

Rationale: Most drugs are absorbed in the GI tract via passive diffusion (Choice D), driven by lipid solubility and concentration gradients across membranes. Active transport (Choice A) requires energy, filtration (Choice B) is minor for drugs, and endocytosis/exocytosis (Choice C) is rare for small molecules.

Question 2 of 5

Metabolic transformation (phase 1) is:

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Pharmacodynamics involves the study of following EXCEPT:

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Mechanisms of transmembrane signaling are the following EXCEPT:

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Tolerance and drug resistance can be a consequence of:

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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