10 Questions
What is the primary reason why ligand gated ion channels can exhibit a diverse range of structural and functional properties?
The different compositions of the multi-metric complexes that make up the channels
What is the primary reason for the very fast (millisecond) response of ligand gated ion channels?
The direct interaction between the ligand and the ion channel, which influences ion flow
How do ligand gated ion channels influence the electrical state of the cell membrane?
By directly influencing ion flow, leading to either hyperpolarization or depolarization
Why do ligand gated ion channels play an important functional role in synaptic transmission?
Because of their very fast (millisecond) response time
Which of the following is NOT a reason for the diversity in structural and functional properties of ligand gated ion channels?
The involvement of intermediate biochemical steps in the activation process
What is the function of an ion channel protein when it is open?
It creates a water-filled pore for the movement of ions
How does the selectivity of ion channels for specific ions occur?
Based on the charge and size of the structure inside the pore
What regulates the gating of ion channels between open and closed states?
Binding of specific ligands to the channel
How are many ligand-gated ion channels structured?
Multimeric, composed of multiple protein subunits
What influences the switching between open and closed states in ion channels?
Binding of different ligands to specific sites on the channel
Explore the assembly and function of ion channel proteins in the plasma membrane, which create water-filled pores allowing the movement of ions across the cell membrane. Learn about the selectivity of ion channels for specific ions based on charge and pore structure.
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