Podcast
Questions and Answers
What characterizes passive diffusion of drug molecules?
What characterizes passive diffusion of drug molecules?
- It is a saturable process.
- It occurs from higher to lower concentration. (correct)
- It is mediated by specific carriers.
- It requires energy in the form of ATP.
Aqueous diffusion is dependent on lipid solubility.
Aqueous diffusion is dependent on lipid solubility.
False (B)
What is the maximum pore diameter of aquaporins involved in aqueous diffusion?
What is the maximum pore diameter of aquaporins involved in aqueous diffusion?
0.4 nm
Passive diffusion is a process that ______ energy to move drug molecules.
Passive diffusion is a process that ______ energy to move drug molecules.
Match the following terms with their descriptions:
Match the following terms with their descriptions:
Flashcards
Passive diffusion
Passive diffusion
Drug movement from high to low concentration, no energy needed, and no specific carrier.
Aqueous diffusion
Aqueous diffusion
Water-soluble drugs move through tiny channels, dictated by size and blood flow, not by drug's properties.
Concentration gradient
Concentration gradient
Difference in drug concentration driving passive diffusion.
Drug transport by Aqueous diffusion
Drug transport by Aqueous diffusion
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Passive diffusion requirement
Passive diffusion requirement
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