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The Science of the Brain and Habits

Addiction Science

Explore the biology of the brain's reward system, neurotransmitters, and how habits form.

neuroscience brain biology health

4 Questions Hard Ages 5+ Oct 17, 2026

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About this Study Set

This study set covers Addiction Science through 4 practice questions. Explore the biology of the brain's reward system, neurotransmitters, and how habits form. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 4 questions from the The Science of the Brain and Habits study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What special chemical messenger does the brain release to signal pleasure and reward when learning or accomplishing a task?

A Insulin
B Dopamine
C Hemoglobin
D Keratin

2 What is the tiny gap between two brain cells where chemical signals travel to pass messages?

A Artery
B Tendon
C Synapse
D Alveolus

3 Which part of the human brain acts as the control center for making decisions and controlling impulses?

A Prefrontal cortex
B Cerebellum
C Brainstem
D Occipital lobe

4 What are the special protein receivers on brain cells that catch chemical messengers like keyholes?

A Platelets
B Enzymes
C Antibodies
D Receptors

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