Questions & Answers
Browse all 18 questions from the
Fundamentals of Addiction Science study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which part of the brain is responsible for decision-making and impulse control, which is still developing throughout childhood?
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A
The brain stem
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B
The prefrontal cortex
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C
The cerebellum
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D
The occipital lobe
2
What is the primary chemical messenger in the brain associated with the 'reward circuit' and motivation?
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A
Dopamine
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B
Adrenaline
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C
Insulin
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D
Serotonin
3
What happens to the number of dopamine receptors in the brain when a person repeatedly uses addictive substances?
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A
They increase
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B
They stay exactly the same
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C
They decrease
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D
They turn into neurons
4
Which organ is primarily responsible for filtering toxins and substances from the bloodstream?
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A
The heart
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B
The lungs
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C
The liver
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D
The pancreas
5
What does the term 'tolerance' mean in the context of addiction science?
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A
The body needs less of a substance to feel the effect
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B
The brain creates new memories instantly
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C
The body needs more of a substance to feel the same effect
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D
The substance is completely removed from the body
6
What is the term for the physical and mental symptoms that occur when a person stops using a substance they have become dependent on?
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A
Withdrawal
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B
Adaptation
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C
Recovery
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D
Immunity
7
Which brain structure is primarily responsible for processing emotions and forming new memories?
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A
The hippocampus
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B
The thalamus
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C
The corpus callosum
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D
The pineal gland
8
In neuroscience, what is the 'reward pathway' primarily designed to encourage?
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A
Sleep cycles
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B
Survival behaviors like eating
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C
Color perception
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D
Hair growth
9
What is the impact of nicotine on the developing brains of children and adolescents?
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A
It improves memory focus
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B
It permanently alters synapse formation
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C
It speeds up physical growth
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D
It has no effect on the brain
10
How do neurotransmitters typically transmit signals across the space between two neurons?
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A
Through electrical wires
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B
By releasing chemicals into the synapse
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C
By physical touch
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D
Through blood flow
11
What is the process called when the brain physically changes its structure and function in response to new experiences or substances?
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A
Neuroplasticity
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B
Cellular decay
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C
Synaptic freezing
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D
Anatomy
12
Which substance acts as a central nervous system depressant, slowing down brain activity and physical coordination?
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A
Caffeine
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B
Nicotine
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C
Alcohol
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D
Amphetamines
13
What is the definition of a 'stimulant' in pharmacology?
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A
A substance that calms the heart rate
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B
A substance that slows down brain activity
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C
A substance that increases activity in the central nervous system
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D
A substance that acts as a pain reliever
14
Why is substance use during adolescence particularly harmful to the brain's 'pruning' process?
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A
It speeds up aging
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B
It disrupts the healthy maturation of neural pathways
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C
It makes the skull thinner
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D
It prevents the growth of new hair
15
What is the role of the 'synapse' in the nervous system?
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A
It creates blood cells
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B
It acts as a junction for chemical communication between neurons
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C
It protects the brain from injury
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D
It produces adrenaline
16
Which of these is a known long-term effect of substances that disrupt the reward system?
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A
Increased ability to focus on schoolwork
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B
Difficulty feeling pleasure from natural rewards
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C
Heightened sense of smell
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D
Faster bone growth
17
What is the primary function of the myelin sheath that surrounds axons?
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A
To filter toxins
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B
To provide structural support to the skull
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C
To speed up the transmission of electrical signals
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D
To store glucose
18
When a substance 'mimics' a neurotransmitter, what does it do?
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A
It cleans the brain
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B
It tricks the brain into activating specific pathways
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C
It permanently destroys the neuron
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D
It changes the color of the brain
