AP Psychology Chapter 3 JR 5

2.

When stimulation is caused the cell membrane opens briefly and

Lets out carbon
Loses charge
Negatively charged potassium ions enters in
Positively charges sodium ion flow in
Both C and D

Correct Answer

A. Positively charges sodium ion flow in

Explanation

When stimulation is caused, the cell membrane opens briefly and allows the flow of positively charged sodium ions into the cell. This influx of positively charged ions helps to depolarize the cell membrane and generate an action potential, which is essential for the transmission of signals in the nervous system.

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3.

With in the Automatic nervous system the sympathetic controls one's

Ability to feed
Ability to fight or flight
Unconscious
Ability to fight or feed
Non of the above

Correct Answer

A. Ability to fight or flight

Explanation

The sympathetic division of the autonomic nervous system is responsible for activating the body's fight or flight response. This response prepares the body for intense physical activity in response to a perceived threat or danger. It increases heart rate, dilates blood vessels, and releases stress hormones like adrenaline. This allows the body to either confront the threat or escape from it. Therefore, the correct answer is "ability to fight or flight."

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4.

The forebrain is the region in which processes

Blood flow
Complicated thoughts
Sensory information
The fight or flight concept
Vital involuntary functions

Correct Answer

A. Complicated thoughts

Explanation

The forebrain is responsible for processing complicated thoughts. It is the largest region of the brain and is involved in higher cognitive functions such as reasoning, problem-solving, decision-making, and memory. This region contains the cerebral cortex, which is responsible for processing sensory information and integrating it with other cognitive processes. Therefore, the forebrain plays a crucial role in our ability to think, understand, and analyze complex information.

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5.

The part of the brain that regulates unconscious functions is the

Pons
Hypothalamus
Reticular formation
Medulla
Thalamus

Correct Answer

A. Medulla

Explanation

The medulla is responsible for regulating unconscious functions in the brain. It controls vital functions such as breathing, heart rate, and blood pressure. It also helps in regulating reflexes and coordinating muscle movements. The medulla is located at the base of the brainstem and connects the spinal cord to the rest of the brain. It plays a crucial role in maintaining homeostasis and ensuring the body functions properly without conscious effort.

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6.

The neurotransmitter that affect ones emotions; arousal; and learning is

Dopamine
Serotonin
GABA
Endorphins
ACH

Correct Answer

A. Dopamine

Explanation

Dopamine is a neurotransmitter that plays a crucial role in regulating emotions, arousal, and learning. It is involved in the reward and pleasure pathways of the brain, influencing motivation, mood, and cognition. Dopamine helps in reinforcing positive behaviors and is associated with feelings of pleasure and satisfaction. Imbalances in dopamine levels have been linked to various psychological disorders, including depression, addiction, and schizophrenia. Therefore, dopamine is the correct answer as it directly affects emotions, arousal, and learning.

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7.

When neurons come towards the CNS it is called

Efferent
Afferent
Agonist
Both A and B
None of the above

Correct Answer

A. Afferent

Explanation

When neurons come towards the CNS, it is referred to as afferent. Afferent neurons transmit sensory information from the body's periphery to the central nervous system. These neurons carry signals related to touch, pain, temperature, and other sensory modalities. The term "afferent" can be remembered by associating it with the phrase "arriving at" or "approaching" the CNS. Therefore, the correct answer is afferent.

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8.

When two traits are same in references to genetics what is that called

Dominate
Recessive
Homozygous
Heterozygous
None of the above

Correct Answer

A. Homozygous

Explanation

When two traits are the same in references to genetics, it is called homozygous. Homozygous refers to having two identical alleles for a particular gene. In this case, both alleles for the trait are the same, which means that the individual is homozygous for that trait.

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9.

In the endocrine system the gland that controls sugar metabolism is the

Pituitary gland
Thyroid gland
Gonads
Adrenal gland
Pancreas

Correct Answer

A. Pancreas

Explanation

The correct answer is pancreas because it is responsible for producing insulin, a hormone that helps regulate blood sugar levels. Insulin allows cells to take in glucose from the bloodstream and use it for energy or store it for later use. Without sufficient insulin, blood sugar levels can become too high, leading to diabetes. Therefore, the pancreas plays a crucial role in controlling sugar metabolism in the body.

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10.

What brain research method uses magnetic fields, radio waves to give you computer enhance images of the brain

Ct scan
MRI
TMS
EEG
Lesioning

Correct Answer

A. MRI

Explanation

MRI stands for Magnetic Resonance Imaging, which is a brain research method that uses magnetic fields and radio waves to generate detailed images of the brain. It provides computer-enhanced images that allow researchers to study the structure and function of the brain. MRI is a non-invasive technique and is widely used in neuroscience research to investigate various brain disorders and abnormalities. It is particularly useful in identifying structural changes, such as tumors or lesions, and studying brain activity in different regions. Therefore, MRI is the correct answer for the given question.

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AP Psychology Chapter 3 Jr 5

What part of the nervous system secretes neurotransmitters?

Quiz Preview

When stimulation is caused the cell membrane opens briefly and

With in the Automatic nervous system the sympathetic controls one's

The forebrain is the region in which processes

The part of the brain that regulates unconscious functions is the

The neurotransmitter that affect ones emotions; arousal; and learning is

When neurons come towards the CNS it is called

When two traits are same in references to genetics what is that called

In the endocrine system the gland that controls sugar metabolism is the

What brain research method uses magnetic fields, radio waves to give you computer enhance images of the brain