WorksheetsSynapse Communication
Total questions: 20
Worksheet time: 20mins
What is another name for a nerve cell?
Axon
Dendron
Neuron
Schwann cell
What is the region where nerve cells meet called?
Synapse
Cleft
Junction
Axon terminal
Another name for a nerve impulse is
Electrical signal
Action potential
Neurotransmitter
Axon terminal
If Cell 1 is a receptor and Cell 2 is a cell in the CNS, then a nerve impulse passes from the
Dendrites of Cell 1 to the axon terminals of Cell 2
Axon terminals of Cell 1 to the dendrites of Cell 2
Dendrites of Cell 2 to the axon terminals of Cell 1
Axon terminals of Cell 2 to the dendrites of Cell 1
Which letter represents a neurotransmitter?
(a)
Which letter represents a vesicle?
(a)
Which letter represents a neurotransmitter receptor?
(a)
Which letter represents a voltage-gated calcium channel?
(a)
Which number represents the post-synaptic membrane?
(a)
Which number represents the pre-synaptic membrane?
(a)
Which number represents the synaptic cleft?
(a)
Which letter OR number represents the axon terminal?
(a)
A nerve impulse is transmitted in which direction
1 to 2 to 3
3 to 2 to 1
What happens in an axon terminal when an action potential arrives at the presynaptic membrane?
sodium ions diffuse in
sodium ions diffuse out
calcium ions diffuse in
calcium ions diffuse out
What happens when calcium ions diffuse into an axon terminal?
vesicles release neurotransmitter by exocytosis
voltage-gated sodium channels open
voltage-gated sodium channels close
neurotransmitter is pumped from the post-synaptic membrane
How does neurotransmitter cross the synaptic cleft?
exocytosis
simple diffusion
carrier mediated transport
osmosis
What causes sodium ion channels on the postsynaptic membrane to open?
arrival of an action potential at the channel
enzymatic digestion of the neurotransmitter bound to the channel
binding of the neurotransmitter to the channel itself
binding of calcium ions to the channel itself
What causes sodium ion channels on the postsynaptic membrane to close?
arrival of an action potential at the channel
enzymatic digestion of the neurotransmitter bound to the channel
binding of the neurotransmitter to the channel itself
binding of calcium ions to the channel itself
The blue nerve in the image represents a
sensory neurone
motor neurone
relay neurone
In this image, the stimulus is ___A___ and the response is ___B___
A = Arm muscle contraction; B = Sight of flame
A = Hot finger; B = Arm muscle contraction
A = Sight of flame; B = Arm muscle contraction
A = Arm muscle contraction; B = Hot finger
