Biological Bases of Behavior
Which of the following is the primary role of a neuron?
To insulate and protect other neurons.
To transmit information using electrical and chemical signals.
To transport waste products away from other neurons.
To provide structure and scaffolding for neural networks.
Which of the following best describes the role of glial cells in the nervous system?
Transmitting rapid electrical signals directly to muscles.
Forming complex networks to process and relay information independently.
Supporting, insulating, and protecting neurons.
Initiating the release of neurotransmitters into the synapse.
How do neurons and glial cells interact to facilitate behavior and mental processes?
Neurons independently handle sensory input, while glial cells manage motor output.
Neurons and glial cells work together, with neurons transmitting signals and glial cells providing support and insulation.
Glial cells directly control decision-making processes, while neurons only relay sensory information.
Neurons and glial cells operate in separate systems, with no direct interaction.
In a reflex arc, what is the role of the sensory neuron?
To cause muscles to react.
To relay the signal to the brain.
To detect the stimulus.
To inhibit the motor neuron.
Why does the spinal cord allow for super-fast reactions?
It directly involves the brain for immediate processing.
It bypasses the brain's direct involvement.
It relies on hormonal signals for quicker responses.
It uses glial cells to amplify the signal.
What is the 'All-or-Nothing Principle' in the context of neural transmission?
A neuron only fires if it receives input from all other neurons.
A neuron fires completely or not at all once the threshold is reached.
A neuron's response is proportional to the strength of the stimulus.
A neuron gradually increases its firing rate as the stimulus intensity increases.
Which of the following best describes the process of reuptake?
The release of neurotransmitters into the synapse.
The reabsorption of neurotransmitters to end the signal.
The binding of neurotransmitters to receptors on the postsynaptic neuron.
The conversion of neurotransmitters into inactive metabolites.

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What is the state of a neuron during resting potential?
Positively charged inside.
Actively firing action potentials.
Negatively charged inside.
Unable to transmit any signals.
Which neurotransmitter is primarily associated with regulating mood, sleep, and appetite?
Dopamine
Serotonin
GABA
Acetylcholine
Which neurotransmitter is the main excitatory neurotransmitter in the brain?
GABA
Glutamate
Serotonin
Dopamine