PSIO 303 BLOCK 1 L12 EXAM QUESTIONS
AND ANSWERS
What is convergence of neural input ? - ANSWER-several presynaptic neurons synapse with one post
synaptic neuron (can be a mix of stimulatory and some inhibitory signals)
How does convergence of neural imput relate to size and polarity of graded p...
What is convergence of neural input ? - ANSWER✔✔-several presynaptic neurons synapse with one post
synaptic neuron (can be a mix of stimulatory and some inhibitory signals)
How does convergence of neural imput relate to size and polarity of graded potentials? - ANSWER✔✔-
graded potentials: side varies with strength of stimulus
What is an inotropic receptor? - ANSWER✔✔-membrane-bound receptor proteins that respond to ligand
binding by opening an ion channel and allowing ions to flow into the cell
What is a metabotropic receptor? - ANSWER✔✔-a type of membrane receptor of eukaryotic cells that
acts through a second messenger.
Where do transporters move neurotransmitters from? - ANSWER✔✔-from the synaptic cleft back into
the presynaptic cell or nearby a glial cell
What is vGLUT and what does it do? - ANSWER✔✔-vesicular glutamate transporter - responsible for the
uptake of the excitatory amino acid, L-glutamate, into synaptic vesicles
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