LSU BIOL 1201: Final Exam
A compound that is secreted in one part of the body and travels
through the bloodstream to another part of the body where it has
an effect is called a(n)
A. Receptor protein
B. Hormone
C. Transmitter
D. Activator Correct Answers B. Hormone
A membrane depolarization is generally caused by:
A. K+ flowing out of the cell
B. negatively charged organic molecules flowing into the cell
C. Ca++ ions flowing out of the cell
D. Na+ flowing into the cell Correct Answers D. Na+ flowing
into the cell
A nerve impulse moves away from a neuron's cell body along
_____.
A. dendrites
B. Nissl bodies
C. synapses
D. axon
E. glia Correct Answers D. axon
A nerve impulse moves toward a neuron's cell body along
_____.
,A. dendrites
B. synaptic terminals
C. oligodendrocytes
D. axons
E. nodes of Ranvier Correct Answers A. dendrites
A neuron's nucleus is located in its _____.
A. cell body
B. axon
C. myelin sheath
D. dendrite
E. synaptic terminals Correct Answers A. cell body
A protein kinase activating many other protein kinases is an
example of _____.
A. mutualism
B. sensitization
C. deactivation
D. amplification
E. a cellular response Correct Answers D. amplification
A signal transduction pathway is initiated when a _____ binds to
a receptor.
A. G protein
B. tyrosine kinase
C. calmodulin
D. signal molecule
E. cyclic AMP Correct Answers D. signal molecule
,A single neuron can synapse with other neurons
A. 1
B. 2
C. a few
D. many Correct Answers D. many
A(n) _____ is an example of a signal molecule that can bind to
an intracellular receptor and thereby cause a gene to be turned
on or off.
A. steroid
B. nucleic acid
C. ion
D. protein
E. carbohydrate Correct Answers A. steroid
Acetylcholinesterase is an enzyme that destroys the
neurotransmitter acetylcholine. This neurotransmitter stimulates
contraction of skeletal muscles. What happens to your skeletal
muscles if the enzyme is inhibited?
A. Muscle Contraction
B. Muscle Relaxation
C. No Change Correct Answers A. Muscle Contraction
Action Potential Correct Answers the result of a rapid
depolarization of the membrane
Action potentials in myelinated axons propagate:
, A. can not propagate
B. using salutatory motion
C. slower than in non-myelinated axons
D. smoothly Correct Answers B. using salutatory motion
Adaptation Correct Answers over time, receptors stop
responding to stimulus
Amplification Correct Answers energy of stimulus is much
less that the action potentials produced by stimulus
An EPSP is the result of ______ gates opening and results in a
__________.
A. K+; hyperpolarization
B. Na+; depolarization Correct Answers B. Na+;
depolarization
An impulse relayed along a myelinated axon "jumps" from
_____ to _____.
A. oligodendrocyte ... Schwann cell
B. node of Ranvier ... Schwann cell
C. node of Ranvier ... node of Ranvier
D. Schwann cell ... Schwann cell
E. Schwann cell ... node of Ranvier Correct Answers C. node
of Ranvier ... node of Ranvier
An IPSP is the result of _____ gates opening and results in a
__________.
A compound that is secreted in one part of the body and travels
through the bloodstream to another part of the body where it has
an effect is called a(n)
A. Receptor protein
B. Hormone
C. Transmitter
D. Activator Correct Answers B. Hormone
A membrane depolarization is generally caused by:
A. K+ flowing out of the cell
B. negatively charged organic molecules flowing into the cell
C. Ca++ ions flowing out of the cell
D. Na+ flowing into the cell Correct Answers D. Na+ flowing
into the cell
A nerve impulse moves away from a neuron's cell body along
_____.
A. dendrites
B. Nissl bodies
C. synapses
D. axon
E. glia Correct Answers D. axon
A nerve impulse moves toward a neuron's cell body along
_____.
,A. dendrites
B. synaptic terminals
C. oligodendrocytes
D. axons
E. nodes of Ranvier Correct Answers A. dendrites
A neuron's nucleus is located in its _____.
A. cell body
B. axon
C. myelin sheath
D. dendrite
E. synaptic terminals Correct Answers A. cell body
A protein kinase activating many other protein kinases is an
example of _____.
A. mutualism
B. sensitization
C. deactivation
D. amplification
E. a cellular response Correct Answers D. amplification
A signal transduction pathway is initiated when a _____ binds to
a receptor.
A. G protein
B. tyrosine kinase
C. calmodulin
D. signal molecule
E. cyclic AMP Correct Answers D. signal molecule
,A single neuron can synapse with other neurons
A. 1
B. 2
C. a few
D. many Correct Answers D. many
A(n) _____ is an example of a signal molecule that can bind to
an intracellular receptor and thereby cause a gene to be turned
on or off.
A. steroid
B. nucleic acid
C. ion
D. protein
E. carbohydrate Correct Answers A. steroid
Acetylcholinesterase is an enzyme that destroys the
neurotransmitter acetylcholine. This neurotransmitter stimulates
contraction of skeletal muscles. What happens to your skeletal
muscles if the enzyme is inhibited?
A. Muscle Contraction
B. Muscle Relaxation
C. No Change Correct Answers A. Muscle Contraction
Action Potential Correct Answers the result of a rapid
depolarization of the membrane
Action potentials in myelinated axons propagate:
, A. can not propagate
B. using salutatory motion
C. slower than in non-myelinated axons
D. smoothly Correct Answers B. using salutatory motion
Adaptation Correct Answers over time, receptors stop
responding to stimulus
Amplification Correct Answers energy of stimulus is much
less that the action potentials produced by stimulus
An EPSP is the result of ______ gates opening and results in a
__________.
A. K+; hyperpolarization
B. Na+; depolarization Correct Answers B. Na+;
depolarization
An impulse relayed along a myelinated axon "jumps" from
_____ to _____.
A. oligodendrocyte ... Schwann cell
B. node of Ranvier ... Schwann cell
C. node of Ranvier ... node of Ranvier
D. Schwann cell ... Schwann cell
E. Schwann cell ... node of Ranvier Correct Answers C. node
of Ranvier ... node of Ranvier
An IPSP is the result of _____ gates opening and results in a
__________.
