(BIO 1120) BIOLOGY 1120 TEST
QUESTIONS AND CORRECT
ANSWERS (EXPERT VERIFIED)
JUST RELEASED| 2025/2026 | SURE
TO PASS !!
1. What is motor output and what type of neuron is
responsible? - ANSWER ✓ It is responding to stimuli
which are received via efferent nerves and motor
neurons.
2. What are the four lobes of the cerebral cortex? -
ANSWER ✓ frontal: Pre-frontal or motor cortex,
movement, decision making, and planning.
parietal: Touch, processing, and sensation.
occipital: Vision, and visual cortex
temporal: auditory cortex receives info from the ear.
3. What does neuronal plasticity mean? - ANSWER ✓ NP
is the capacity for synapses to strengthen/weaken in
, response to activity. behaviors: the more you use the
stronger they become.
4. What are effector cells? - ANSWER ✓ Effector cells
are short-lived cells that take immediate effect against
antigens/pathogens. for b cells effector cells are plasma
cells that secrete antibodies, for t cells it is helper t cells
and cytotoxic t cells.
They are cells that perform a specific function in
response to a stimulus. EX. muscle cells
5. What is the CNS? - ANSWER ✓ Brain and Spinal cord:
where processing and regulation happens.
6. What is the peripheral nervous system? - ANSWER ✓
it is outside of the central nervous system and has
nerves (bundles of neurons and connective tissue) and
ganglia (clusters of neuron cells bodies)
7. be able to label a neuron - ANSWER ✓ be able to label
a neuron
,8. What are glial cells? What functions do they have? -
ANSWER ✓ Support neurons and surround them to
help them function by insulating supporting and
cleaning up the environment the neuron is in. They can
produce Myelin sheath.
9. What is cerebrospinal fluid? - ANSWER ✓ the fluid
that surrounds the brain and spinal cord. Filtering blood
in the brain from ependymal glial cells. it bathes the
brain and spinal cord, circulates through the ventricles,
the central canal of the spinal cord and drains into the
veins.
10. What is the meninges? - ANSWER ✓ These are three
layers of connective tissue membranes covering and
protecting the CNS structures.
11. What is grey matter? - ANSWER ✓ cell bodies of
neurons
, 12. What is white matter? - ANSWER ✓ myelinated
axons, in the spinal cord white matter, surround grey
matter.
13. What is the PNS divided into? - ANSWER ✓ somatic
nervous system
autonomic nervous system
14. Nerves of the somatic system control what type of
effector organs? - ANSWER ✓ Motor neurons-skeletal
muscles
15. Nerves of the autonomic nervous system control what
type of effector organs? - ANSWER ✓ Regulates
involuntary response: breathing, cardiac muscles,
digestion, etc.
16. The neural tube forms from the ectoderm and forms
three bulges around week five of embryonic
development. What are the bulges called? - ANSWER
✓ 1. Midbrain
2. Hindbrain- Pons, cerebellum, and medulla oblongata
QUESTIONS AND CORRECT
ANSWERS (EXPERT VERIFIED)
JUST RELEASED| 2025/2026 | SURE
TO PASS !!
1. What is motor output and what type of neuron is
responsible? - ANSWER ✓ It is responding to stimuli
which are received via efferent nerves and motor
neurons.
2. What are the four lobes of the cerebral cortex? -
ANSWER ✓ frontal: Pre-frontal or motor cortex,
movement, decision making, and planning.
parietal: Touch, processing, and sensation.
occipital: Vision, and visual cortex
temporal: auditory cortex receives info from the ear.
3. What does neuronal plasticity mean? - ANSWER ✓ NP
is the capacity for synapses to strengthen/weaken in
, response to activity. behaviors: the more you use the
stronger they become.
4. What are effector cells? - ANSWER ✓ Effector cells
are short-lived cells that take immediate effect against
antigens/pathogens. for b cells effector cells are plasma
cells that secrete antibodies, for t cells it is helper t cells
and cytotoxic t cells.
They are cells that perform a specific function in
response to a stimulus. EX. muscle cells
5. What is the CNS? - ANSWER ✓ Brain and Spinal cord:
where processing and regulation happens.
6. What is the peripheral nervous system? - ANSWER ✓
it is outside of the central nervous system and has
nerves (bundles of neurons and connective tissue) and
ganglia (clusters of neuron cells bodies)
7. be able to label a neuron - ANSWER ✓ be able to label
a neuron
,8. What are glial cells? What functions do they have? -
ANSWER ✓ Support neurons and surround them to
help them function by insulating supporting and
cleaning up the environment the neuron is in. They can
produce Myelin sheath.
9. What is cerebrospinal fluid? - ANSWER ✓ the fluid
that surrounds the brain and spinal cord. Filtering blood
in the brain from ependymal glial cells. it bathes the
brain and spinal cord, circulates through the ventricles,
the central canal of the spinal cord and drains into the
veins.
10. What is the meninges? - ANSWER ✓ These are three
layers of connective tissue membranes covering and
protecting the CNS structures.
11. What is grey matter? - ANSWER ✓ cell bodies of
neurons
, 12. What is white matter? - ANSWER ✓ myelinated
axons, in the spinal cord white matter, surround grey
matter.
13. What is the PNS divided into? - ANSWER ✓ somatic
nervous system
autonomic nervous system
14. Nerves of the somatic system control what type of
effector organs? - ANSWER ✓ Motor neurons-skeletal
muscles
15. Nerves of the autonomic nervous system control what
type of effector organs? - ANSWER ✓ Regulates
involuntary response: breathing, cardiac muscles,
digestion, etc.
16. The neural tube forms from the ectoderm and forms
three bulges around week five of embryonic
development. What are the bulges called? - ANSWER
✓ 1. Midbrain
2. Hindbrain- Pons, cerebellum, and medulla oblongata
