Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

The surface of the axon contains hundreds of thousands of minisculemechanisms called _______________.

A. Synapses
B. Ion channels
C. Synaptic gaps
D. Postsynaptics
Answer» C. Synaptic gaps
2.

When the action potential reaches the axon ending, it causes tiny bubbles of chemicals called ____________________ to release their contents into the synapticgap.

A. Spinal reflex
B. Presynaptic
C. Synaptic vesicles
D. Synaptic cleft
Answer» D. Synaptic cleft
3.

In the brain and spinal cord, areas that are mostly axons are called___________ which is possible to differentiate pathways or tracts of these axons.

A. White matter
B. Gray matter
C. Ganglia
D. Nerve
Answer» B. Gray matter
4.

Areas that include large number of cell bodies are called __________________.

A. White matter
B. Gray matter
C. Ganglia
D. Nerve
Answer» C. Ganglia
5.

_____________ are the thread-like strands of DNA molecules that form the DNAsegments.

A. Chromosomes
B. Genotypes
C. Phenotypes
D. Genes
Answer» B. Genotypes
6.

_______________ is the expression of your genetic makeup (eye color, height, hair color, etc).

A. Chromosome
B. Genotype
C. Phenotype
D. Gene
Answer» D. Gene
7.

When the ___________________is too large to be jumped by the neural impulse, the signal/information must be passed using chemicals asneurotransmitters instead of electrical currents.

A. Spinal reflex
B. Presynaptic
C. Action potential
D. Synaptic cleft
Answer» E.
8.

______________ is the DNA segments that serve as the key functional units inhereditary transmission.

A. Chromosome
B. Genotype
C. Phenotype
D. Gene
Answer» E.
9.

The area where the axon connects to the soma is ______________.

A. Axon hillock
B. Terminal buttons
C. Myelin sheath
D. Nodes of Ranvier
Answer» B. Terminal buttons
10.

The __________, which is the largest of the limbic system structures, plays animportant role in the acquisition of memories.

A. Hippocampus
B. Thalamus
C. Amygdala
D. Pons
Answer» B. Thalamus
11.

The reticular formation has long tracts of fibers that run to the ____________, which channels incoming sensory information to the appropriate area of thecerebral cortex, where that information is processed.

A. Hypothalamus
B. Pons
C. Medulla
D. Thalamus
Answer» E.
12.

Researchers in the field of __________________ provide evolutionaryexplanations for the social behavior and social systems of humans and other animal species.

A. Sociobiology
B. Evolutionary psychology
C. Phrenology
D. Anthropology
Answer» B. Evolutionary psychology
13.

Researchers in the field of human behavior genetics unite __________ andpsychology to explore the causal link between inheritance and behavior.

A. Chromosome
B. Behavior
C. Genome
D. Genetics
Answer» E.
14.

The __________ of an organism is the full sequence of genes found on thechromosomes with the associated DNA.

A. X chromosome
B. b. Y chromosome
C. c. Genome
D. d. Genetics
Answer» D. d. Genetics
15.

The pseudoscience associated with the study of the skull and personalitybecame known as ___________.

A. Neuroscience
B. Neuropsychology
C. Bioscience
D. Phrenology
Answer» E.
16.

The best-known imaging technique, and the first one developed for widespread use, is an x-ray scanning procedure called ________________.

A. MRI scan
B. PET
C. CT scan
D. functional MRI
Answer» D. functional MRI
17.

In diseases such as multiple sclerosis (MS), progressive deterioration of the_______________ leads to jerky, uncoordinated movements in the affected person.

A. Myelin sheath
B. Neurotransmitter
C. Nodes of Ranvier
D. Synapse
Answer» B. Neurotransmitter
18.

Stimulation, either directly or by chemical messages from other neurons,produces ___________________, a basic type of signal within neurons.

A. Spinal reflexes
B. Graded potentials
C. Action potentials
D. Resting potentials
Answer» C. Action potentials
19.

Damage to the ___________________ surrounding axons can seriously affectsynaptic transmission.

A. Glial cell
B. Endocrine
C. Nodes of Ranvier
D. Myelin sheath
Answer» E.
20.

Speeds along myelinated axons can reach ____________ miles per hour.

A. 280
B. 270
C. 260
D. 250
Answer» C. 260
21.

_______________ help form a barrier that prevents certain substances in thebloodstream from reaching the brain.

A. Axons
B. Dendrites
C. Glial cells
D. Cell body
Answer» D. Cell body
22.

In many neurons the axon is covered by a sheath of fatty material known as _____________.

A. Myelin
B. Neurons
C. Glial cells
D. Vesicles
Answer» B. Neurons
23.

_________________ carry information toward the cell body.

A. Cells
B. Neurons
C. Axons
D. Dendrites
Answer» E.
24.

_________________ carry information away from the cell body.

A. Cells
B. Neurons
C. Axons
D. Dendrites
Answer» D. Dendrites
25.

_________________ are the small gaps in the myelin sheath surrounding theaxons of many neurons.

A. Neurotransmitters
B. Synaptic vesicles
C. Nodes of Ranvier
D. Glial cells
Answer» D. Glial cells
26.

The ______________ is the most basic signal in the nervous system which consists of a rapidly moving wave of depolarization that travels along themembrane of the individual neuron.

A. Myelin sheath
B. Synapse
C. Action potential
D. Neurotransmitter
Answer» D. Neurotransmitter
27.

Within the axons of the neuron are _________________, which are held instorage-like vesicles until they are released when the neuron is stimulated.

A. Neurotransmitters
B. Synaptic vesicles
C. Dendrites
D. Cellbodies
Answer» B. Synaptic vesicles
28.

When an action potential reaches the axon terminal, synaptic vesicles movetoward the _____________________.

A. Cell body
B. Cell membrane
C. Nucleus
D. Dendrites
Answer» C. Nucleus
29.

Degeneration of ___________________ producing neurons has been linked toParkinson's disease.

A. Serotonin
B. Norepinephrine
C. Dopamine
D. Endorphins
Answer» D. Endorphins
30.

Additional evidence indicates that ___________________ also serve to intensify positive sensations- for example, the "runner's high" many peopleexperience after vigorous exercise.

A. Endorphins
B. Antagonist
C. Agonist
D. Serotonin
Answer» B. Antagonist
31.

________________ is a chemical substance that inhibits the effect normallyproduced by a neurotransmitter at a receptor site.

A. Endorphins
B. Antagonist
C. Agonist
D. Serotonin
Answer» C. Agonist
32.

________________ refer to simple, automatic behaviors that are produced by thespinal cord and occur without involvement of the brain.

A. Spinal reflexes
B. Presynaptic
C. Action potential
D. Resting potential
Answer» B. Presynaptic
33.

_____________ are made up of large bundles of neuron axons.

A. Neurons
B. Nerves
C. Chromosomes
D. Cell bodies
Answer» C. Chromosomes
34.

The ________________ is a tiny space between the axon terminal of one neuronand the dendrite of an adjoining neuron.

A. Synapse
B. Synaptic vesicle
C. Synaptic gap
D. Postsynaptic
Answer» D. Postsynaptic
35.

______________neurons communicate information from one neuron to the next.

A. Interneurons
B. Sensory neurons
C. Motor neurons
D. Excitatory
Answer» B. Sensory neurons
36.

________________ is the neurotransmitter that inhibits brain activity.

A. Gamma-aminobutyric acid (GABA)
B. Norepinephrine
C. Dopamine
D. Serotonin
Answer» B. Norepinephrine
37.

_________________ is a neurotransmitter that is involved in the regulation ofbodily movements and thought processes.

A. Gamma-aminobutyric acid (GABA)
B. Norepinephrine
C. Dopamine
D. Serotonin
Answer» D. Serotonin
38.

_________________ are the tiny pouches or sacs in the axon terminals thatcontain chemicals called neurotransmitters.

A. Synapses
B. Synaptic vesicles
C. Synaptic gaps
D. Postsynaptics
Answer» C. Synaptic gaps
39.

________________ is the point of communication between two neurons.

A. Myelin sheath
B. Synapse
C. Action potential
D. Neurotransmitter
Answer» C. Action potential
40.

______________ is the long, fluid-filled tube that carries a neuron's messages toother body areas.

A. Axon
B. Dendrite
C. Glial cell
D. Cell body
Answer» B. Dendrite
41.

_______________ is a chemical messenger manufactured by a neuron.

A. Myelin sheath
B. Synapse
C. Action potential
D. Neurotransmitter
Answer» E.
42.

________________ is a brief electrical impulse by which information istransmitted along the axon of a neuron.

A. Myelin sheath
B. Synapse
C. Action potential
D. Neurotransmitter
Answer» D. Neurotransmitter
43.

_______________ is the part of a neuron that contains the nucleus.

A. Axons
B. Dendrites
C. Glial cells
D. Cell body
Answer» E.
44.

_______________ is a type of neuron that signals muscles to contract or relax.

A. Interneurons
B. Sensory neurons
C. Motor neurons
D. Excitatory
Answer» D. Excitatory
45.

_______________ is the primary internal communication network of the body;divided into the central nervous system and the peripheral nervous system.

A. Nervous system
B. Endocrine
C. Brain
D. Neuron
Answer» B. Endocrine
46.

_______________ is a highly specialized cell that communicates information inelectrical and chemical form.

A. Neuron
B. Nerve cell
C. Chromosome
D. Nervous
Answer» B. Nerve cell
47.

Prozac works by inhibiting the reuptake of __________________, increasing theavailability of this neurotransmitter in the brain.

A. Gamma-aminobutyric acid (GABA)
B. Norepinephrine
C. Dopamine
D. Serotonin
Answer» E.
48.

______________ are neurotransmitters that regulate pain perception and areinvolved in the positive emotions associated with aerobic exercise.

A. Gamma-aminobutyric acid (GABA)
B. Norepinephrine
C. Endorphins
D. Serotonin
Answer» D. Serotonin
49.

________________ has been implicated in some mental disorders and is involved in activation of neurons throughout the brain and in the process of learning andmemory retrieval.

A. Acetylcholine
B. Norepinephrine
C. Dopamine
D. Serotonin
Answer» C. Dopamine
50.

_________________ usually communicates inhibitory messages to other neurons and helps balance and offset excitatory messages.

A. Gamma-aminobutyric acid (GABA)
B. Norepinephrine
C. Dopamine
D. Serotonin
Answer» B. Norepinephrine