All Free Psychology MCQs with Answers

• A. social psychology
• B. development psychology
• C. industrial-organizational psychology
• D. personality psychology

Explanation: Industrial-organizational psychology applies psychological principles to employee selection, training, performance, leadership, and…

• A. Alfred Kinsey
• B. Masters and Johnson
• C. David Buss
• D. Sigmund Freud

Explanation: Alfred Kinsey conducted large-scale survey research on human sexual behavior in the 1940s and 1950s.

• A. Emotions
• B. Availability
• C. Hormones
• D. Thinking

Explanation: In most nonhuman species, sexual behavior is primarily governed by hormonal changes that activate reproductive motivation and behavior.

• A. Arousal
• B. Plateau
• C. Excitement
• D. Orgasm

Explanation: The standard human sexual response cycle consists of excitement, plateau, orgasm, and resolution.

• A. the plateau phase immediately precedes orgasm
• B. orgasm immediately precedes the excitement phase
• C. the excitement phase immediately precedes orgasm
• D. the excitement phase immediately precedes the resolution phase

Explanation: The usual sequence is excitement, plateau, orgasm, and resolution, so the plateau phase directly precedes orgasm.

• A. Hypothalamus
• B. Hippocampus
• C. Frontal lobe
• D. Carpus Callosum

Explanation: The hypothalamus helps regulate hunger, satiety, and other homeostatic functions involved in eating.

• A. Adult neurons can sometimes from new connections
• B. If one input to a target area is lost, the remaining inputs sometimes send out new branches from their axons to colonize the vacant space
• C. Although transplanted neurons taken from a brain at the right stage of development will grow in an adult host brain, they will not restore normal function
• D. Transplants of dopamine cell bodies alleviate some of the symptoms of Alzheimer's disease in human patients

Explanation: Dopamine-cell transplants have been investigated mainly for Parkinson's disease, not as an established treatment that alleviates…

• A. We cannot repair damaged brains
• B. We can repair some damaged brains
• C. We can prevent brain damage
• D. We can prevent Parkinson's disease

Explanation: Neural grafting research does not show that all brain damage can be repaired, but it has shown that some damaged neural systems may be…

• A. Antagonists
• B. Agonists
• C. A and B
• D. Synapses

Explanation: Antagonists block or reduce neurotransmitter effects, whereas agonists mimic or enhance them; either can disrupt normal neural…

• A. Inhibitory neurotransmitters increase the excitability of a cell
• B. The classic inhibitory neurotransmitter is glutamate
• C. Increasing chloride ion flow into the interior of the cell decreases the cell's negativity
• D. Increasing the cell's negativity is called hyperpolarization

Explanation: An increase in a cell's negativity is called hyperpolarization and makes firing less likely.

• A. Resting potentials, neurotransmitters
• B. Neurotransmitters, axon potentials
• C. Neurotransmitters, depolarization
• D. Axon potentials; neurotransmitters

Explanation: Electrical signals travel along axons as action potentials, while chemical communication across synapses is mediated by neurotransmitters.

• A. Seizure were caused by chemical discharges in the brain
• B. The cortex can be surgically removed to reduce seizures
• C. Brain regions have highly specialized functions
• D. (b) and (c)

Explanation: Epilepsy research helped establish that different cortical regions have specialized functions and that removing an epileptic focus can…

• A. 1 & 2
• B. 2 & 3
• C. 1 & 3
• D. None

Explanation: Neocortical regions can contain specialized functional modules, and functional imaging can show which regions are active.

• A. Autonomic nervous system, which includes the sympathetic and parasympathetic system
• B. Somatic system, which includes the sympathetic system and parasympathetic system
• C. Autonomic system, which includes the central and somatic system
• D. Somatic system, which includes the central and autonomic system

Explanation: The autonomic nervous system regulates involuntary organs and glands, including the heart and endocrine glands.

• A. The central nervous system includes the nerves through which the central nervous system interacts with the rest of the body
• B. The peripheral nervous system includes the brain and the spinal cord
• C. Afferent or sensory nerves carry information to the central nervous system from sensory neurons and regulate glandular secretion
• D. Efferent or motor nerves extend out from the central nervous system to the organs

Explanation: Efferent, or motor, nerves carry commands away from the central nervous system to muscles and glands.

• A. Cell body, dendrites, axon
• B. Cell body, nerves, axon
• C. White matter, cell body, nerves
• D. Internal body, external body, nerve branches

Explanation: A typical neuron has a cell body, dendrites, and an axon. Dendrites receive signals, the cell body maintains the neuron, and the axon…

• A. Dendrite
• B. Neuron
• C. Brain
• D. Spinal Cord

Explanation: The neuron is the basic structural and functional unit of the nervous system because it receives, processes, and transmits information.

• A. Cell bodies
• B. Non-myelinated nerve fibers
• C. White matter
• D. both a & b

Explanation: Spinal-cord gray matter contains neuronal cell bodies and many unmyelinated fibers, whereas white matter is mainly composed of myelinated…

• A. Forebrain
• B. Midbrain
• C. Hindbrain
• D. All of these

Explanation: The forebrain includes the cerebrum, limbic system, and thalamus, making it the largest and most complex major brain division.

• A. Thalamus
• B. Cerebrum
• C. Limbic system
• D. All of the aboveTry Nootropic Supplements

Explanation: The thalamus acts as a major relay station, directing most incoming sensory information to appropriate areas of the cerebral cortex.