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Questions and Answers
What type of proteins are ligand-gated ion channels?
What type of proteins are ligand-gated ion channels?
- Lipid-anchored proteins
- Peripheral membrane proteins
- Integral membrane proteins (correct)
- Transmembrane proteins
What drives the flow of ions across the plasma membrane in ligand-gated ion channels?
What drives the flow of ions across the plasma membrane in ligand-gated ion channels?
- Active transport
- Osmosis
- Facilitated diffusion
- Passive transport driven by the electrochemical gradient (correct)
What happens to the channel when the ligand binds to the receptor?
What happens to the channel when the ligand binds to the receptor?
- The channel opens (correct)
- The channel closes
- The channel becomes partially open
- The channel remains the same
What is an example of a ligand that binds to a receptor and opens an ion channel?
What is an example of a ligand that binds to a receptor and opens an ion channel?
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What happens to the channel when the ligand leaves the receptor?
What happens to the channel when the ligand leaves the receptor?
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