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Questions and Answers
What is the driving force for passive diffusion according to Fick's law?
What is the driving force for passive diffusion according to Fick's law?
- Higher drug concentrations from mucosal side to blood (correct)
- Lower drug concentrations from mucosal side to blood
- Higher drug concentrations from blood to mucosal side
- Equal drug concentrations from mucosal side to blood
In passive diffusion, how do molecules move?
In passive diffusion, how do molecules move?
- By active transport from lower to higher concentration
- Spontaneously from higher to lower concentration (correct)
- By facilitated diffusion from lower to higher concentration
- By osmosis from lower to higher concentration
What type of drug is likely to pass through the lipid cell membrane without barrier?
What type of drug is likely to pass through the lipid cell membrane without barrier?
- Low molecular weight and lipophilic (correct)
- High molecular weight and hydrophilic
- High molecular weight and lipophilic
- Low molecular weight and hydrophilic
What is the major absorption process for most drugs?
What is the major absorption process for most drugs?
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When is passive diffusion considered passive?
When is passive diffusion considered passive?
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Study Notes
Diffusion and Passive Transport
- The driving force for passive diffusion is the concentration gradient, according to Fick's law.
- In passive diffusion, molecules move from an area of higher concentration to an area of lower concentration.
- Lipid-soluble drugs are likely to pass through the lipid cell membrane without barrier.
- The major absorption process for most drugs is passive diffusion.
- Passive diffusion is considered passive because it does not require energy input from the cell.
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Description
Test your understanding of Fick's Law of Diffusion and Distribution Co-efficient with this quiz by Dr. Muhammad Sarfraz. Explore topics such as passive diffusion and the role of lipophilic drugs in cell membrane absorption. Ideal for pharmacy students and those interested in pharmaceutics.
