Free Brain MCQs with Answers
91 Brain MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
The brain includes the cerebrum, cerebellum, brainstem, hypothalamus and medulla, each with distinct roles in sensation, movement and homeostasis. Questions connect major brain regions with their functions, reflex control and coordination, while distinguishing involuntary responses from hormonal regulation.
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- A. Cerebrum
- B. Cerebellum
- C. Medulla oblongata
- D. Thalamus
Explanation: The cerebrum is the largest brain region and is divided into two cerebral hemispheres responsible for conscious sensation, voluntary…
Correct answer: Cerebrum- A. Imprinting
- B. Habituation
- C. Latent learning
- D. Insight learning
Explanation: Habituation is a non-associative form of learning in which an organism's response decreases after repeated exposure to a harmless…
Correct answer: Habituation- A. Latent learning
- B. Insight learning
- C. Operant conditioning
- D. Instinct
Explanation: Insight learning occurs when an animal suddenly reorganises its understanding of a problem and reaches a solution, rather than relying…
Correct answer: Insight learning- A. Epilepsy
- B. Meningitis
- C. Alzheimer's disease
- D. Parkinson's disease
Explanation: Parkinson's disease results mainly from degeneration of dopamine-producing neurons involved in motor control, causing resting tremors…
Correct answer: Parkinson's disease- A. X: stroke, Y: haemorrhage,
- B. X: haemorrhage, Y: stroke,
- C. X: haemorrhage, Y: arteriosclerosis,
- D. X: stroke, Y: arteriosclerosis,
Explanation: Option A correctly identifies X as stroke (blood flow to brain stops) and Y(bleeding from a vessel) as haemorrhage, which align with the…
Correct answer: X: stroke, Y: haemorrhage,- A. Thalamus
- B. Amygdala
- C. Hippocampus
- D. Hypothalamus
Explanation: The correct answer is the hippocampus, which plays a vital role in the formation and retrieval of long-term memories.
Correct answer: Hippocampus- A. Imprinting
- B. Habituation
- C. Latent learning
- D. Insight learning
Explanation: The correct answer is habituation. Habituation is a simple form of learning where an animal, through repeated exposure, becomes accustomed…
Correct answer: Habituation- A. I
- B. II
- C. III
- D. IV
Explanation: This structure, A, is the corpus callosum, which is the primary structure connecting the right and left cerebral hemispheres.
Correct answer: I- A. A
- B. B
- C. C
- D. D
Explanation: B part is the brainstem (medulla oblongata), which regulates vital functions e.g. breathing, heart rate, and blood pressure.
Correct answer: B- A. Imprinting
- B. Latent learning
- C. Insight learning
- D. Conditioned reflex type I
Explanation: The correct answer is insight learning. Insight learning involves solving a problem through understanding the relationships between…
Correct answer: Insight learning- A. Epilepsy
- B. Graves' disease
- C. Alzheimer's disease
- D. Parkinson's disease
Explanation: Parkinson's disease is the correct answer because it is a neurodegenerative disorder characterized by symptoms such as tremor, muscle…
Correct answer: Parkinson's disease- A. Latent learning
- B. Insight learning
- C. Classic conditioning
- D. Operant conditioning
Explanation: A toddler who burns his hand by touching a hot stove learns to avoid the stove in the future due to the painful consequence that followed…
Correct answer: Operant conditioning- A. Vision and perception problems
- B. Difficulty in recalling old memories
- C. Inability to understand spoken or written language
- D. Trouble with emotional reactions and decision-making
Explanation: The hippocampus is a critical region for memory formation and retrieval, especially in transitioning memories from short-term to long-term…
Correct answer: Difficulty in recalling old memories- A. Corpus fibrosum
- B. Corpus striatum
- C. Corpus luteum
- D. Corpus callosum
Explanation: The correct answer is the corpus callosum, which is a large band of white matter connecting the two hemispheres of the brain and is unique…
Correct answer: Corpus callosum- A. Thalamus
- B. Amygdala
- C. Hypothalamus
- D. Cerebellum
Explanation: Option A: The Thalamus is involved in processing sensory information and relaying it to the cerebral cortex for further processing.
Correct answer: Cerebellum- A. Forebrain
- B. Midbrain
- C. Hindbrain
- D. Limbic system
Explanation: The midbrain, also known as the mesencephalon, is a part of the brainstem located between the hindbrain and the forebrain.
Correct answer: Midbrain- A. Brain
- B. Spinal cord
- C. Nerves and ganglia
- D. Both Options A and B are correct
Explanation: The central nervous system (CNS) is the processing center for the nervous system.
Correct answer: Both Options A and B are correct- A. Broca's area
- B. Lateral sulcus
- C. Corpus callosum
- D. Thalamus
Explanation: The two hemispheres in your brain are connected by a thick bundle of nerve fibers called the corpus callosum, which ensures both sides of…
Correct answer: Corpus callosum- A. Cerebrum
- B. Thalamus
- C. Hypothalamus
- D. Limbic system
Explanation: The largest part of the brain is the cerebrum, present in the forebrain.
Correct answer: Cerebrum- A. Forebrain
- B. Midbrain
- C. Hindbrain
- D. Limbic System
Explanation: The midbrain is much reduced in humans. It connects the hindbrain with the forebrain, receiving sensory information from the eyes, nose…
Correct answer: Midbrain