Quiz 1 psyc 380 Complete Guide
with Questions and Verified
Answers 100% Correct
Question 1
3..13 pts
The speed of an action potential down an unmyelinated axon is best described as .
the speed of electricity, regardless of the size of the axon
less than 1 meter per second, regardless of the size of the axon
faster in thin axons than in thick ones
faster in thick axons than in thin ones
and mathematics, their format, and how they evaluate students’ comprehension and application of core concepts. We will also discuss the similarities and differences in
Question 2
3..13 pts
Oxygen, carbon dioxide, and freely flow across a cell membrane.
amino acids
positively charged ions
glucose
vitamins A and D
Question 3
3..13 pts
Which event will increase the concentration gradient of sodium?
Decreasing permeability to potassium ions
,Increasing activity of the sodium potassium pump
Increasing membrane permeability to sodium ions
, Increasing membrane permeability to chloride ions
Question 4
3..13 pts
A membrane produces an action potential whenever the potential across it reaches what level?
the resting potential
-90 mV
the threshold of excitation
the refractory period
and mathematics, their format, and how they evaluate students’ comprehension and application of core concepts. We will also discuss the similarities and differences in
Question 5
3..13 pts
An axon has many branches, each of which swells at its tip. These are known as .
presynaptic terminals
efferent axons
afferent axons
intrinsic neurons
Question 6
3..13 pts
Gaps in the insulating material that surrounds axons are known as .
interpeduncular nuclei
nodes of Ranvier
with Questions and Verified
Answers 100% Correct
Question 1
3..13 pts
The speed of an action potential down an unmyelinated axon is best described as .
the speed of electricity, regardless of the size of the axon
less than 1 meter per second, regardless of the size of the axon
faster in thin axons than in thick ones
faster in thick axons than in thin ones
and mathematics, their format, and how they evaluate students’ comprehension and application of core concepts. We will also discuss the similarities and differences in
Question 2
3..13 pts
Oxygen, carbon dioxide, and freely flow across a cell membrane.
amino acids
positively charged ions
glucose
vitamins A and D
Question 3
3..13 pts
Which event will increase the concentration gradient of sodium?
Decreasing permeability to potassium ions
,Increasing activity of the sodium potassium pump
Increasing membrane permeability to sodium ions
, Increasing membrane permeability to chloride ions
Question 4
3..13 pts
A membrane produces an action potential whenever the potential across it reaches what level?
the resting potential
-90 mV
the threshold of excitation
the refractory period
and mathematics, their format, and how they evaluate students’ comprehension and application of core concepts. We will also discuss the similarities and differences in
Question 5
3..13 pts
An axon has many branches, each of which swells at its tip. These are known as .
presynaptic terminals
efferent axons
afferent axons
intrinsic neurons
Question 6
3..13 pts
Gaps in the insulating material that surrounds axons are known as .
interpeduncular nuclei
nodes of Ranvier
