Nerve

Quiz
•
Science
•
University
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Repolarisation of an activated neuron does NOT include:
Opening of voltage-gated Na+ channels
Opening of voltage-gated K+ channels
Shifting membrane potential towards resting levels
Inactivation of voltage-gated Na+ channels
Tags
NGSS.HS-PS3-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a motor unit?
A muscle fibre and all the neurons it innervates
A motor neuron and all the muscle fibres that it innervates
All the nerve fibres and muscle fibres contained in one fascicle
A motor neuron and a single muscle fibre that it innervates
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False?
At threshold (-60mV), voltage-gated K+ channels are closed and voltage-gated Na+ channels open.
True
False
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Local Potentials
Depolarise the membrane to the same level (+30 mV) each time
Depolarise or hyperpolarise the membrane to different levels
Propagate down the axon
Associate with voltage-gated ion channels
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The region of the neuron where all local potentials summate is the
Dendrite
Cell body
Axon hillock
Axon Terminal
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False?
A neurotransmitter from a pre-synaptic neuron binds to a voltage-gated ion channel on the dendrite of a post-synaptic neuron
True
False
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is labeled #6?
Axon
Neurotransmitter
Synapse
Calcium Channel
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