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WorksheetsCOORDINATION : SYNAPSE
Total questions: 10
Worksheet time: 5mins
What is the role of calcium ions during a synaptic transmission?
Generate action potential
Speed up the impulse transmission
Depolarisation of the synaptic knob
trigger the vesicles to move and fuse with the presynaptic membrane
X is .....
Na+
Ca2+
neurotransmitter
K+
Which of the following is NOT TRUE about the synapse?
At the synapse, neurotransmitters are released at the postsynaptic membrane.
At the synapse, chemical signals are converted into electrical signals.
Small gap between neuron is called synaptic cleft
Neurotransmitter binds to ligand-gated ion channel on post-synaptic membrane
Which of the following is the event that happen at Q?
Synaptic vesicle carrying acetylcholine fuses with the presynaptic membrane and releases the acetylcholine into the synaptic cleft.
Acetylcholine molecules diffuse across the synaptic cleft
Acetylcholine binds to the receptors on the presynaptic membrane.
Acetylcholine is resynthesized
Stucture that contain neurotransmitter is....
B
A
D
E
Name an organelle which can be found in structure A.
vesicle
mitochondrion
nucleus
receptor
Neurotransmitters are released from the
Dendrites
Post-synaptic neuron
Presynaptic neuron
Schwann Cells
What is the chemical used by a neuron to transmit an impulse across a synapse to another nerve cell?
Neurotransmitters
Synapse
Threshold
Impulse
What chemical is activated by the action potential in the presynaptic neuron that causes the vesicles containing neurotranmitters to move toward the synaptic cleft?
calcium
potassium
sodium
phosphorus
Neurotransmitters are released from presynaptic membrane to synaptic cleft by process of
Osmosis
Diffusion
Active transport
Exocytosis
