Biology 1104 Final Exam Unit 4
Questions with Correct Answers 2025
sensory nervous system - CORRECT ANSWER -
transmits info from periphery to central nervous system and contains receptors
Motor nervous system - CORRECT ANSWER -
transmits info from the central nervous system to the rest of the body; sends motor informatio
n to "effectors" throughout the body
autonomic nervous system - CORRECT ANSWER -involuntary
somatic nervous system - CORRECT ANSWER -voluntary
parasympathetic nervous system - CORRECT ANSWER -housekeeping
sympathetic nervous system - CORRECT ANSWER -fight or flight responses
Neurons - CORRECT ANSWER -
transmit information to the CNS, integrate information, and transmit info to the peripheral ner
vous system
Glia - CORRECT ANSWER -
nourish, insulate, hold together, regulate the environment for neurons, as well as destroying an
d removing dead neurons
dendrites - CORRECT ANSWER -receive signals
, axons - CORRECT ANSWER -release signals
electrical signal - CORRECT ANSWER -How is a signal relayed within a neuron?
chemical signal - CORRECT ANSWER -How is a signal relayed between neurons?
ion flow across cell membranes - CORRECT ANSWER -
What causes electrical signals in a neuron?
K+, Na+, Cl-, Ca+2 - CORRECT ANSWER -What are the 4 important ions in the nervous system?
False - CORRECT ANSWER -
True/False. Charged particles can pass through the phospholipid bilayer.
Ion channels - CORRECT ANSWER -allow only certain ions to pass through
leak channels - CORRECT ANSWER -permanently open channels
gated channels - CORRECT ANSWER -channels that open and close
membrane potential - CORRECT ANSWER -
an electrical potential when the difference in two electrical charges are on the opposite sides o
f a membrane
voltage - CORRECT ANSWER -an electrical potential difference between 2 points
resting potential - CORRECT ANSWER -when a neuron is NOT transmitting an electrical signal
Questions with Correct Answers 2025
sensory nervous system - CORRECT ANSWER -
transmits info from periphery to central nervous system and contains receptors
Motor nervous system - CORRECT ANSWER -
transmits info from the central nervous system to the rest of the body; sends motor informatio
n to "effectors" throughout the body
autonomic nervous system - CORRECT ANSWER -involuntary
somatic nervous system - CORRECT ANSWER -voluntary
parasympathetic nervous system - CORRECT ANSWER -housekeeping
sympathetic nervous system - CORRECT ANSWER -fight or flight responses
Neurons - CORRECT ANSWER -
transmit information to the CNS, integrate information, and transmit info to the peripheral ner
vous system
Glia - CORRECT ANSWER -
nourish, insulate, hold together, regulate the environment for neurons, as well as destroying an
d removing dead neurons
dendrites - CORRECT ANSWER -receive signals
, axons - CORRECT ANSWER -release signals
electrical signal - CORRECT ANSWER -How is a signal relayed within a neuron?
chemical signal - CORRECT ANSWER -How is a signal relayed between neurons?
ion flow across cell membranes - CORRECT ANSWER -
What causes electrical signals in a neuron?
K+, Na+, Cl-, Ca+2 - CORRECT ANSWER -What are the 4 important ions in the nervous system?
False - CORRECT ANSWER -
True/False. Charged particles can pass through the phospholipid bilayer.
Ion channels - CORRECT ANSWER -allow only certain ions to pass through
leak channels - CORRECT ANSWER -permanently open channels
gated channels - CORRECT ANSWER -channels that open and close
membrane potential - CORRECT ANSWER -
an electrical potential when the difference in two electrical charges are on the opposite sides o
f a membrane
voltage - CORRECT ANSWER -an electrical potential difference between 2 points
resting potential - CORRECT ANSWER -when a neuron is NOT transmitting an electrical signal
