All Free Psychology MCQs with Answers

• A. Instinct
• B. Taxis
• C. Learning
• D. Kinesis

Explanation: Instinctive behaviour is especially valuable for animals that mature quickly and receive little or no parental teaching because it is…

• A. Kinesis
• B. Taxis
• C. Reflex
• D. Instinct

Explanation: Taxis is a directed movement toward or away from a stimulus, such as movement toward light or away from a harmful chemical.

• A. chemical; electrical
• B. acetylcholine, catecholamine
• C. dendrite; axon
• D. electrical; chemical

Explanation: The nerve impulse travelling within a neuron is primarily electrical, whereas communication across the synaptic gap is usually chemical…

• A. uptake
• B. uploading
• C. regarding
• D. reuptake

Explanation: Reuptake is the process by which the presynaptic neuron takes neurotransmitters back from the synaptic cleft, helping terminate or…

• A. amounts of DNA and RNA
• B. types of neurotransmitters on either side of the nerve cell membrane
• C. types of neurons inside and outside the nerve cell membrane.
• D. concentrations of ions on either side of the nerve cell membrane

Explanation: The resting charge across a neuron’s membrane arises because ions such as sodium and potassium are unevenly concentrated inside and…

• A. soma; somatic membrane
• B. nucleus; nucleic dampers
• C. dendrite; dendritic arcs
• D. axon; axon terminals

Explanation: An axon carries impulses away from the cell body and usually branches into axon terminals, which form connections with other neurons.

• A. hypothalamus
• B. pituitary
• C. CNS
• D. midbrain

Explanation: The hypothalamus connects the nervous system with the endocrine system by regulating the pituitary gland, which then influences many other…

• A. Aphasia
• B. Broca's area
• C. Wernicke's area
• D. Agnosia

Explanation: Broca’s area supports speech production, including the grammatical organization and pronunciation of spoken language.

• A. mimic the effects of neurotransmitters
• B. stimulate the production or hormones
• C. control heartbeat and breathing
• D. provide nutrients to interneurons

Explanation: Glial cells support neurons by supplying nutrients, maintaining their environment, and providing insulation and protection; interneurons…

• A. muscles and glands
• B. skeletal joints
• C. axon terminals
• D. all vital organs

Explanation: Neurotransmitter receptors occur not only on neurons but also on muscles and glands, allowing neural signals to produce movement or…

• A. hypothalamus
• B. thalamus
• C. cerebellum
• D. cerebral cortex

Explanation: The cerebral cortex is far more developed and complex in humans than in a carp, supporting advanced perception, language, reasoning, and…

• A. peripheral nervous system
• B. central nervous system
• C. afferent nervous system
• D. vascular nervous system

Explanation: The peripheral nervous system includes all neural structures outside the brain and spinal cord, including both the somatic and autonomic…

• A. prescription-only drugs
• B. synapses
• C. neurotransmitters
• D. beta blockers

Explanation: These substances can act as neurotransmitters, chemical messengers that transmit signals between neurons or from neurons to muscles and…

• A. chemical; electrical
• B. electrical; mechanical
• C. electrical; chemical
• D. mechanical; electrical

Explanation: An action potential carries information electrically along a neuron, whereas communication across the synaptic gap usually uses chemical…

• A. limbic system
• B. parasympathetic nervous system.
• C. autonomic nervous system
• D. central nervous system

Explanation: The autonomic nervous system carries involuntary messages to organs such as the heart; its sympathetic and parasympathetic branches…

• A. epinephrine
• B. insulin
• C. serotonin
• D. acetylcholine

Explanation: A threatening accusation activates the sympathetic fight-or-flight response, causing the adrenal glands to release epinephrine into the…

• A. cerebellum
• B. peripheral nervous system
• C. sensory cortex
• D. reticular formation

Explanation: Sensory neurons carry information from receptors toward the central nervous system and therefore belong to the peripheral nervous system.

• A. corpus callosum
• B. sympathetic nervous system
• C. somatic nervous system
• D. cerebellum

Explanation: A racing heart, agitation, and jitteriness are typical effects of sympathetic nervous system activation, the arousing branch of the…

• A. reduced levels of the neurotransmitter GABA
• B. increased activity at norepinephrine synapses
• C. excess levels of the neurotransmitter dopamine
• D. reduced activity at norepinephrine

Explanation: Major depression has traditionally been associated with reduced activity of monoamine systems, including norepinephrine, although its…

• A. tomography
• B. hemispherectomy
• C. phrenology
• D. plasticity

Explanation: Brain plasticity is the capacity of neural tissue to reorganise and for one area to assume functions formerly carried out by a damaged…