Psychobiology MCQs
Psychobiology MCQs
Try to answer these 50+ Psychobiology MCQs and check your understanding of the Psychobiology subject. Scroll down and let's begin!
1: A cross section of the spinal cord indicates that gray matter is ____.
A. Densely packed with myelinated axons
B. Composed mostly of unmyelinated axons
C. Densely packed with cell bodies and dendrites
D. Composed only of dendrites
2: A dopamine pill is ineffective for treating parkinson's disease because it ____.
A. Increases the brain's production of dopamine
B. does not cross the blood-brain barrier
C. The caudate nucleus, putamen, and globus pallidus
D. Modestly effective, as with other treatments
3: Active transport of molecules across membranes requires atp because __________.
A. The transport protein moves or has moving gates
B. The transported molecules are not soluble in the lipid membrane
C. The molecules are moved against the concentration gradient (uphill)
D. More than one molecule is transported at a time
4: Müllerian ducts are found in ____.
A. Genetic female fetuses only
B. Genetic male fetuses only
C. Female and male fetuses early in development
D. Female and male fetuses until shortly before birth
5: Somatic is to autonomic what _____ is to _____.
A. Rest; excitation
B. Voluntary; involuntary
C. Involuntary; voluntary
D. Excitation; rest
6: Stimulation of the pontomesencephalon ____.
A. Awakens a sleeping individual
B. Decreases alertness in someone already awake
C. Shifts the EEG from short waves to long, slow waves
D. Delays the onset of the next REM period
7: The secretion of pyy _____ hunger and the secretion of orexin _____ hunger.
A. Increases; decreases
B. Decreases; increases
C. Increases; increases
D. Decreases; decreases
8: As compared to dendrites, axons usually ____.
A. Are covered with myelin
B. Synaptic receptors
C. Is marked by severe memory impairments
9: The release of cortisol during the fight-or-flight response occurs at the end of the _____ pathway.
A. Pituitary, Hypothalamus, Adrenal cortex
B. Pituitary, Adrenal cortex, Hypothalamus
C. Hypothalamus, Pituitary, Adrenal cortex
D. Adrenal Cortex, Hypothalamus, Pituitary
10: The difference between neurons in the pns and neurons in the cns is that _____.
A. Neurons in the PNS can regenerate
B. Neuroplasticity
C. Improvements in the damaged area of the spinal cord
11: The fight-or-flight response is to ________ as the general adaptation syndrome is to ________.
A. Is instigated by the; hypothalamus
B. Walter Cannon; Hans Selye
C. The tend-and-befriend response
12: The rods of the retina are the main receptors of the _______ visual system.
A. Scotopic
B. Amblyopia
C. Ganglion
13: The endocrine system is directly involved with ____.
A. Vision, hearing, and taste
B. arousal, metabolism, growth and sex
C. movement and balance
D. pleasure and pain
14: The endocrine system responds to input from the nervous system, particularly from the ____.
A. Hypothalamus
B. Sensory neuron
C. Cortex
15: _____ refers to the process of gathering information about the world through our senses.
A. Sensation
B. Perception.
C. Sensory
16: A ______ will always be expressed in the observable trait.
A. Dominant gene
B. Chromosome disorder
C. Chromosome disorder
17: A human egg contains ________ chromosome and a human sperm contains ________ chromosome.
A. An X; either an X or a Y
B. An Y; either an X or a Y
C. An X; either an Y
18: A phenotype can consist of _____ as well as _____ characteristics.
A. Physical; psychological
B. Mentally; psychological
C. Physical; phychological
19: In the nervous system, the job of the axons is to ________ other neurons.
A. Transmit action potentials to
B. Integrate information from
C. Detect information from
D. Release neurotransmitter to
20: According to erik erikson, personality develops _____.
A. Mostly during early childhood.
B. Only until age five.
C. During adolescence.
D. Over the entire life span
21: The brain gets part of its information regarding low osmotic pressure from ____.
A. Receptors around the third ventricle
B. The blood-brain barrier
C. The subfornical organ
D. Thalamus
22: Neurons typically have one ____, but many ____.
A. Axon; dendrites
B. Large, branching extensions
C. Synaptic receptors
D. Fat molecules; proteins
23: Protein channels allow ____ molecules to cross the cell membrane.
A. Large charged
B. Small charged
C. Large uncharged
D. Small uncharged
24: The membrane of a neuron is composed of ____ with ____ embedded in them.
A. Fat molecules; proteins
B. axon; dendrites
C. Large, branching extensions
D. None of these
25: The relationship between behavior and biology is ____.
A. Unilateral: biology affects behavior
B. Unilateral: behavior affects biology
C. Reciprocal: biology affects behavior and vice versa
D. Mutually exclusive: biology and behavior function independently
26: In development, neurotrophins ____. during adulthood, they ____.
A. Preserve neurons; produce apoptosisb
B. Produce apoptosis; increase neuronal branchingc
C. Facilitate differentiation; facilitate migrationd
D. Preserve neurons; increase neuronal branching
27: Ischemia is to ____ as hemorrhage is to ____.
A. Older individuals; younger individuals
B. Proximal; distal
C. Obstruction; rupture
D. Barely noticeable; lethal
28: Sigmund freud is responsible for revolutionary ideas and the __________ theory.
A. Behavioral
B. Psychoanalytic
C. Phallic
D. Reality
29: Areas bordering the primary auditory cortex are important for ____.
A. Analyzing the meaning of sounds
B. Difficulty in responding to sequences of sounds
C. Auditory cortex map of sounds
D. on the basilar membrane
30: The major disadvantage of a blood-brain barrier is that ____.
A. Many chemicals can easily diffuse into the brain
B. So much glucose is required to maintain it
C. Certain required chemicals must be actively transported
D. Viruses cannot escape
31: Sherrington inferred the presence of a gap between neurons based on ________ .
A. Slower than predicted speed of conduction
B. Inconsistent occurrence of conduction
C. Suppression of reflexes
D. The existence of spinal reflexes
32: In castrated male rats, the medial preoptic area ____.
A. has as much dopamine as normal rats, but the presence of a receptive female does not evoke much release of it
B. during the periovulatory period
C. the amount of testosterone during prenatal development
D. the sex region Y (SRY) gene
33: A neuron excretes neurotransmitters through its membrane by a process called ____.
A. Neuron
B. Ionotropic
C. Exocytosis
D. Calcium
34: A person who sees spoken language or music may be experiencing ____.
A. Synesthesia
B. Amnesia
C. Anesthesia
D. Aphasia
35: A symptom of right-hemisphere parietal lobe damage is the tendency to ignore the ____.
A. Right side of the body
B. Dorsal areas of the body
C. Left side of the body
D. Ventral areas of the body
36: A tonotopic map refers to a(n) ____.
A. Frequency theory only
B. Oval window
C. Auditory cortex map of sounds
D. Absolute pitch
37: Empowerment and egalitarianism are the basis of the ________ therapeutic relationship.
A. Existential
B. Feminist
C. Gestalt
D. Psychoanalytic
38: A study finds a correlation coefficient of r = .32 and reports p < .05. the p is a/an ________.
A. Probability estimate
B. Greater construct validity
C. Sample size
D. Moderator
39: For an association claim, you should interrogate all of the following validities except __________.
A. Statistical
B. External
C. Internal
D. Construct
40: A melody is defined by the _______, rather than by an exact sequence of sound frequencies.
A. Pattern of rises and falls in pitch
B. Tempo
C. Chords
D. Increasing frequency pattern
E. Tone height
41: _______ is a sound quality whereby a sound is heard to be of higher or lower pitch.
A. Octave
B. Tone chroma
C. Tone height
D. Musical pitch
42: Olfactory information is coded in receptor cells through ____.
A. nucleus of the tractus solitarius
B. hundreds
C. hundreds of types of receptor molecules, each responsive to a different chemical
D. olfactory bulb
43: More cases of child abuse are perpetrated by _____________ than any other group.
A. Elder abuse
B. Violence resistance
C. Sexual assault
D. Mothers
44: Deep brain stimulation of the ________ can alleviate the symptoms of parkinson's disease.
A. Thalamus
B. Putamen
C. Basal ganglia
D. Subthalamic nucleus.
45: Humans exposed to the stress of ________ show evidence of brain degeneration in ct scans.
A. Life
B. Torture
C. Adolescence
D. Caregiving
E. Motherhood
46: The ________ plays a key role in the extinction of drug responding.
A. Orbitofrontal cortex
B. Ventromedial prefrontal cortex (vmPFC)
C. Hypothalamus
D. Hippocampus
E. Amygdala
47: The human brain starts to resemble a _____________ by the 28th day of embryonic development.
A. Body size.
B. Ventricles.
C. Motor movements.
D. Hollow tube
48: After cells have differentiated as neurons or glia, they ____.
A. Differentiate
B. Proliferate
C. Myelinate
D. Migrate
49: Autoreceptors monitor the ____.
A. Number of action potentials
B. Extracellular sodium concentration
C. Amount of neurotransmitter released
D. Amount of reuptake
50: ____ steer new axonal branches and synapses in the right direction.
A. Chemokines
B. Immunoglobulin
C. Glia
D. Neurotrophins
List of Psychobiology MCQs Mul...
Available in:
Psychobiology MCQs
