ASU BIO 181 EXAM 3 13-16.

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ASU BIO 181 EXAM 3 (13-16).

QUESTIONS AND ANSWER S,

RATED A+. VERIFIED.

Question : T/F The axon from a pre-synaptic cell contacts

the axon of another neuron.

CORRECT ANSWER: False

Question : T/F The autonomic nervous system contains

the sympathetic and the parasympathetic nervous system.

CORRECT ANSWER: True

Question : We have an expert-written solution to this

problem!In the motor end plate, the event that is the immediate

trigger for exocytosis is:

CORRECT ANSWER: Calcium Ions

Question : T/F Excitatory synapses cause

hyperpolarization of post-synaptic cells.

CORRECT ANSWER: False

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Question : T/F Acetylcholine esterase breaks

acetylcholine into muscarinic acid

CORRECT ANSWER: False

Question : T/F Voltage-gated ion channels open when a

protein binds to the receptor.

CORRECT ANSWER: False

Question : T/F Excitatory synapses cause depolarization

of the post-synaptic cell.

CORRECT ANSWER: True

Question : T/F The cell body refers to the part of the

neurons that begin at the dendrites and extend to the axon terminal.

CORRECT ANSWER: False

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Question : T/F Fast neurons as described in lecture are

fast because they are surrounded by a type of glial cell that results in a myelin coating.

CORRECT ANSWER: False

Question : T/F The receptors in post-synaptic cells are the

basis on which the synapse can be defined as inhibitory or excitatory.

CORRECT ANSWER: False

Question : T/F Only pre-synaptic neurons are coated with

myelin.

CORRECT ANSWER: False

Question : How do the glial cells (i.e., myelin sheath)

speed up the firing of neurons?

CORRECT ANSWER: Provides insulation for the

Axons

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Question : T/F Potassium ions at high concentrations

inside of cells including neurons.

CORRECT ANSWER: True

Question : T/F Excitory synapses make the post-synaptic

cell less likely to fire.

CORRECT ANSWER: False

Question : T/F The membrane potential (resting potential)

is largely set by the Na-K- ATPase pump.

CORRECT ANSWER: True

Question : T/F Fast neurons as described in lecture

require cytoplasmic signal transduction to open an ion channel.

CORRECT ANSWER: False

Question : T/F Receptors are made from membrane-

bound polyribosomes.

CORRECT ANSWER: True