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MCAT Psychology: Biology and Behavior Questions and Answers | Latest Update | 2024/2025 | 100% Verified
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MCAT Psychology: Biology and Behavior Questions and Answers | Latest Update | 2024/2025 | 100% Verified What is the function of the hypothalamus in regulating basic biological drives? The hypothalamus regulates basic biological drives such as hunger, thirst, and body temperature, as well a...

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  • August 21, 2024
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  • 2024/2025
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MCAT Psychology: Biology and
Behavior Questions and Answers |
Latest Update | 2024/2025 | 100% Verified

What is the function of the hypothalamus in regulating basic biological drives?




✔✔The hypothalamus regulates basic biological drives such as hunger, thirst, and body

temperature, as well as controlling the autonomic nervous system and endocrine system.




Describe the role of neurotransmitters in synaptic transmission.




✔✔Neurotransmitters are chemical messengers released from the presynaptic neuron that bind to

receptors on the postsynaptic neuron, transmitting signals across the synapse.




What is the significance of the amygdala in emotional processing?




✔✔The amygdala is involved in processing and regulating emotions, particularly those related to

fear and pleasure, and contributes to emotional memory formation.




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,How does the serotonin system influence mood and behavior?




✔✔The serotonin system affects mood, emotion, and behavior by modulating neurotransmission

and influencing feelings of well-being and happiness.




Explain the role of the frontal lobe in executive functions.




✔✔The frontal lobe is responsible for executive functions such as decision-making, problem-

solving, planning, and controlling impulses and behaviors.




What is the impact of cortisol on stress and its effects on the body?




✔✔Cortisol is a hormone released during stress that helps regulate metabolism and immune

responses but can negatively affect the body by increasing blood sugar levels and suppressing

immune function if chronically elevated.




Describe the process of sensory adaptation and its purpose.




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, ✔✔Sensory adaptation is the process by which sensory receptors become less responsive to

constant stimuli over time, allowing individuals to focus on changes in their environment rather

than constant stimuli.




How does the limbic system contribute to emotional regulation?




✔✔The limbic system, including structures like the amygdala and hippocampus, plays a key role

in emotional regulation by integrating sensory information with emotional responses and

memory.




What is the function of the parietal lobe in spatial awareness?




✔✔The parietal lobe processes sensory information related to touch, proprioception, and spatial

orientation, contributing to spatial awareness and coordination.




Explain the role of the basal ganglia in motor control.




✔✔The basal ganglia are involved in regulating and coordinating voluntary motor movements,

motor planning, and smooth execution of movements.


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