ASU BIO 181 - Capco - Final Exam
Questions and Answers 100% Solved
The terminal web - ✔✔is a site of exocytosis
The central nervous system (CNS) contains - ✔✔There is no correct
answer
Acetylcholine exocytosed from the presynaptic cell travels to the
postsynaptic cell to start the action potential in the postsynaptic cell -
✔✔True
Potassium ions are at high concentrations inside of cells including in
neurons - ✔✔True
The receptors in post-synaptic cells are the basis on which the synapse
can be defined as inhibitory or excitatory. - ✔✔False
Voltage-gated ion channels open when a protein binds to the receptor -
✔✔False
The membrane potential (resting potential) is largely set by the Na-K-
ATPase pump. - ✔✔True
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Fast neurons as described in lecture require cytoplasmic signal
transduction to open an ion channel. - ✔✔False
The post-synaptic cell can be - ✔✔in glands, muscle cells, neurons
Fast neurons as described in lecture are fast because they are surrounded
by a type of glial cell that results in a myelin coating - ✔✔False
The automatic nervous system contains the sympathetic and the
parasympathetic nervous system - ✔✔True
Excitatory synapses make the post-synaptic cell less likely to fire. -
✔✔False
When the presynaptic cell contacts a muscle cell, the synapse area is
called a motor end plate - ✔✔True
Acetylcholine esterase breaks acetylcholine into muscarinic acid - ✔✔False
Receptors are made from membrane-bound polyribosomes. - ✔✔True
In the motor end plate, the event that is the immediate trigger for exocytosis
is - ✔✔Calcium ions
Excitatory synapses cause hyperpolarization of post-synaptic cells -
✔✔False