Bio 109 Quiz 6 2024/2025 Exam
Questions and Verified Answers |
Already Graded A+
A change in the membrane potential of a neuron from a value of -70mV to
a value of -60mV would be called: - 🧠ANSWER ✔✔Depolarization
A change in the membrane potential of a neuron from a value of -70 mV to
a value of -80 mV would be called:
depolarization
hyperpolarization
action potential
repolarization - 🧠ANSWER ✔✔hyperpolarization
The point of connection between two communicating neurons is called the:
axon hillock
dendrite
synapse
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,cell body
neuronal connector - 🧠ANSWER ✔✔synapse
Which of the following statements concerning the propagation of action
potentials is incorrect?
Saltatory conduction occurs in myelinated axons.
During conduction of an action potential, current flows from the active area
of the membrane to the adjacent inactive area, thereby bringing the inactive
area to threshold.
For fibers of equal diameter, action potential propagation is faster in
myelinated fibers than in unmyelinated ones.
Strong stimuli generate stronger action potentials than weaker stimuli. -
🧠ANSWER ✔✔Strong stimuli generate stronger actions potentials than
weaker stimuli
In a neuron, resting potential is maintained by maintaining a gradient of: -
🧠ANSWER ✔✔Both Potassium and Sodiums ions
Threshold stimuli are stimuli that are strong enough to: - 🧠ANSWER
✔✔cause a net influx of positively charged Na+ ions from outside to inside
the cell
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STATEMENT. ALL RIGHTS RESERVED
, Acetylcholine released into the junction between a motor neuron and a
skeletal muscle binds to a sodium channel and opens its. The sodium
channel is a:
voltage-gated sodium channel.
voltage-gated potassium channel.
ligand-gated sodium channel.
second-messenger-gated channel. - 🧠ANSWER ✔✔ligand-gated sodium
channel
Long-term memory information processing requires that links initially
established in the hippocampus are replaced with connections in the:
medulla
pons
cerebellum
cerebral cortex
spinal cord - 🧠ANSWER ✔✔cerebral cortex
In a resting potential, an example of a cation that is more abundant in the
cytosol of a neuron than in the interstitial fluid outside the neuron is:
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STATEMENT. ALL RIGHTS RESERVED
Questions and Verified Answers |
Already Graded A+
A change in the membrane potential of a neuron from a value of -70mV to
a value of -60mV would be called: - 🧠ANSWER ✔✔Depolarization
A change in the membrane potential of a neuron from a value of -70 mV to
a value of -80 mV would be called:
depolarization
hyperpolarization
action potential
repolarization - 🧠ANSWER ✔✔hyperpolarization
The point of connection between two communicating neurons is called the:
axon hillock
dendrite
synapse
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
,cell body
neuronal connector - 🧠ANSWER ✔✔synapse
Which of the following statements concerning the propagation of action
potentials is incorrect?
Saltatory conduction occurs in myelinated axons.
During conduction of an action potential, current flows from the active area
of the membrane to the adjacent inactive area, thereby bringing the inactive
area to threshold.
For fibers of equal diameter, action potential propagation is faster in
myelinated fibers than in unmyelinated ones.
Strong stimuli generate stronger action potentials than weaker stimuli. -
🧠ANSWER ✔✔Strong stimuli generate stronger actions potentials than
weaker stimuli
In a neuron, resting potential is maintained by maintaining a gradient of: -
🧠ANSWER ✔✔Both Potassium and Sodiums ions
Threshold stimuli are stimuli that are strong enough to: - 🧠ANSWER
✔✔cause a net influx of positively charged Na+ ions from outside to inside
the cell
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
, Acetylcholine released into the junction between a motor neuron and a
skeletal muscle binds to a sodium channel and opens its. The sodium
channel is a:
voltage-gated sodium channel.
voltage-gated potassium channel.
ligand-gated sodium channel.
second-messenger-gated channel. - 🧠ANSWER ✔✔ligand-gated sodium
channel
Long-term memory information processing requires that links initially
established in the hippocampus are replaced with connections in the:
medulla
pons
cerebellum
cerebral cortex
spinal cord - 🧠ANSWER ✔✔cerebral cortex
In a resting potential, an example of a cation that is more abundant in the
cytosol of a neuron than in the interstitial fluid outside the neuron is:
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
