Synaptic Transmission Worksheet
Explore the structure and function of a synapse, including neurotransmission and its components, suitable for Grade 10 science students.
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Synaptic Transmission Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the diagram of the synapse when necessary.
Observe the diagram of a synapse below:
1. Which part of the neuron is responsible for releasing neurotransmitters into the synaptic cleft?
Dendrite
Cell body
Axon terminal
Myelin sheath
2. What is the primary function of receptor proteins on the postsynaptic membrane?
Produce neurotransmitters
Degrade excess neurotransmitters
Bind with neurotransmitters
Generate action potentials
3. The small gap between the presynaptic and postsynaptic neurons is called the .
4. Neurotransmitters are stored in membrane-bound sacs called within the axon terminal.
5. When an action potential reaches the axon terminal, it triggers the influx of ions, which leads to the release of neurotransmitters.
6. Neurotransmitters always cause an excitatory effect on the postsynaptic neuron.
True
False
7. Reuptake is a mechanism by which neurotransmitters are reabsorbed by the presynaptic neuron.
True
False
8. Describe the sequence of events that leads to the release of neurotransmitters from the presynaptic neuron.
9. Explain the difference between an excitatory and an inhibitory neurotransmitter.
Use the words below to complete the sentences.
10. Neurotransmitters bind to specific on the membrane.
11. After binding, neurotransmitters can be broken down by in the synaptic cleft or reabsorbed by the neuron.