BIO 181 ASU EXAM 3 T/F
Excitatory synapses cause depolarization of the post-synaptic cell. - CORRECT
ANSWER-True
Excitatory synapses cause hyperpolarization of post-synaptic cells. - CORRECT
ANSWER-False
Excitatory synapses make the post-synaptic cell less likely to fire. - CORRECT
ANSWER-False
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
The autonomic nervous system contains the sympathetic and the parasympathetic
nervous system. - CORRECT ANSWER-True
The axon hillock in the pre-synaptic neuron fires based on temporal and spatial
summation of inputs. - CORRECT ANSWER-True
Potassium ions are at high concentrations inside of cells including in neurons. -
CORRECT ANSWER-True
The receptors in post-synaptic cells are the basis on which the synapse can be defined
as inhibitory or excitatory. - CORRECT ANSWER-False
Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to
start the action potential in the postsynaptic cell. - CORRECT ANSWER-True
The cell body refers to the part of the neurons that begin at the dendrites and extend to
the axon terminal. - CORRECT ANSWER-False
The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. -
CORRECT ANSWER-True
Fast neurons as described in lecture require cytoplasmic signal transduction to open an
ion channel. - CORRECT ANSWER-False
, The axon from a pre-synaptic cell contacts the axon of another neuron. - CORRECT
ANSWER-False
Receptors are made from membrane-bound polyribosomes. - CORRECT
ANSWER-True
Only pre-synaptic neurons are coated with myelin. - CORRECT ANSWER-False
When the presynaptic cell contacts a muscle cell, the synapse area is called a motor
end plate. - CORRECT ANSWER-True
Acetylcholine esterase breaks acetylcholine into muscarinic acid - CORRECT
ANSWER-False
Vitamin D is really a hormone. - CORRECT ANSWER-True
When the Sympathetic nervous system is triggered glycogen is broken down to glucose
to provide more energy. - CORRECT ANSWER-True
The Parasympathetic Nervous System is triggered is trigger to act by exposure to
epinephrine. - CORRECT ANSWER-False
Vitamin D causes the parathyroid to inhibit new PTH synthesis. - CORRECT
ANSWER-True
Insulin is produced by alpha cells. - CORRECT ANSWER-False
The medulla of the adrenal gland produces epinephrine (i.e., adrenaline). - CORRECT
ANSWER-True
Insulin is a ligand. - CORRECT ANSWER-True
Vitamin D is synthesized from cholesterol - CORRECT ANSWER-True
Blood moves very rapidly in the capillaries - CORRECT ANSWER-False
Nutrients and oxygen can leave the arteries and arterioles to reach the cells. -
CORRECT ANSWER-False
Excitatory synapses cause depolarization of the post-synaptic cell. - CORRECT
ANSWER-True
Excitatory synapses cause hyperpolarization of post-synaptic cells. - CORRECT
ANSWER-False
Excitatory synapses make the post-synaptic cell less likely to fire. - CORRECT
ANSWER-False
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
The autonomic nervous system contains the sympathetic and the parasympathetic
nervous system. - CORRECT ANSWER-True
The axon hillock in the pre-synaptic neuron fires based on temporal and spatial
summation of inputs. - CORRECT ANSWER-True
Potassium ions are at high concentrations inside of cells including in neurons. -
CORRECT ANSWER-True
The receptors in post-synaptic cells are the basis on which the synapse can be defined
as inhibitory or excitatory. - CORRECT ANSWER-False
Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to
start the action potential in the postsynaptic cell. - CORRECT ANSWER-True
The cell body refers to the part of the neurons that begin at the dendrites and extend to
the axon terminal. - CORRECT ANSWER-False
The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. -
CORRECT ANSWER-True
Fast neurons as described in lecture require cytoplasmic signal transduction to open an
ion channel. - CORRECT ANSWER-False
, The axon from a pre-synaptic cell contacts the axon of another neuron. - CORRECT
ANSWER-False
Receptors are made from membrane-bound polyribosomes. - CORRECT
ANSWER-True
Only pre-synaptic neurons are coated with myelin. - CORRECT ANSWER-False
When the presynaptic cell contacts a muscle cell, the synapse area is called a motor
end plate. - CORRECT ANSWER-True
Acetylcholine esterase breaks acetylcholine into muscarinic acid - CORRECT
ANSWER-False
Vitamin D is really a hormone. - CORRECT ANSWER-True
When the Sympathetic nervous system is triggered glycogen is broken down to glucose
to provide more energy. - CORRECT ANSWER-True
The Parasympathetic Nervous System is triggered is trigger to act by exposure to
epinephrine. - CORRECT ANSWER-False
Vitamin D causes the parathyroid to inhibit new PTH synthesis. - CORRECT
ANSWER-True
Insulin is produced by alpha cells. - CORRECT ANSWER-False
The medulla of the adrenal gland produces epinephrine (i.e., adrenaline). - CORRECT
ANSWER-True
Insulin is a ligand. - CORRECT ANSWER-True
Vitamin D is synthesized from cholesterol - CORRECT ANSWER-True
Blood moves very rapidly in the capillaries - CORRECT ANSWER-False
Nutrients and oxygen can leave the arteries and arterioles to reach the cells. -
CORRECT ANSWER-False
