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Questions and Answers
What is one theory to explain the rapid penetration of certain molecules with low lipid solubility across membranes?
What is one theory to explain the rapid penetration of certain molecules with low lipid solubility across membranes?
- Simple diffusion
- Osmosis
- Facilitated passive diffusion (correct)
- Active transport
What type of molecules penetrate membranes more rapidly than expected through facilitated passive diffusion?
What type of molecules penetrate membranes more rapidly than expected through facilitated passive diffusion?
- Molecules with high lipid solubility
- Large molecules
- Molecules with low lipid solubility (correct)
- Charged molecules
What limits the process of facilitated passive diffusion?
What limits the process of facilitated passive diffusion?
- Availability of carriers (correct)
- Membrane permeability
- Concentration gradient
- Molecular weight of the substrate
Which of the following statements about facilitated passive diffusion is true?
Which of the following statements about facilitated passive diffusion is true?
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