Podcast
Questions and Answers
Which type of receptors are ligand-gated ion channels composed of subunits?
Which type of receptors are ligand-gated ion channels composed of subunits?
- G protein-coupled receptors
- Ionotropic receptors (correct)
- Voltage-gated calcium channels
- Metabotropic receptors
Which neurotransmitter tends to open chloride ion channels?
Which neurotransmitter tends to open chloride ion channels?
- GABA (correct)
- Acetylcholine
- Neurotransmitters do not open chloride ion channels
- Glutamate
What is the major excitatory neurotransmitter in the brain?
What is the major excitatory neurotransmitter in the brain?
- GABA
- Serotonin
- Glutamate (correct)
- Acetylcholine
What is the major inhibitory neurotransmitter in the brain?
What is the major inhibitory neurotransmitter in the brain?
What can lead to disorders if mutations occur in genes encoding proteins in the postsynaptic density?
What can lead to disorders if mutations occur in genes encoding proteins in the postsynaptic density?
Which subunits make up G proteins?
Which subunits make up G proteins?
What happens when the neurotransmitter binds to the G protein?
What happens when the neurotransmitter binds to the G protein?
What do second messenger systems do?
What do second messenger systems do?
What do stimulatory G proteins do?
What do stimulatory G proteins do?
What can alter neuronal communication?
What can alter neuronal communication?
Which of the following is true about the resting membrane potential of a neuron?
Which of the following is true about the resting membrane potential of a neuron?
What is the role of neurotransmitters in neural communication?
What is the role of neurotransmitters in neural communication?
What is the function of potassium channels in a neuron at rest?
What is the function of potassium channels in a neuron at rest?
What is the difference between electrical and concentration gradients in a neuron?
What is the difference between electrical and concentration gradients in a neuron?
What is the role of sodium-potassium pumps in a neuron?
What is the role of sodium-potassium pumps in a neuron?
