Asked by Amina Hussein on Jun 14, 2024
Verified
Identify the correct sequence of the structures as they are involved in activity at a chemical synapse.
A) Postsynaptic membrane; synaptic cleft; presynaptic terminal
B) Presynaptic terminal; synaptic cleft; postsynaptic membrane
C) Synaptic cleft; presynaptic terminal; postsynaptic membrane
D) Presynaptic terminal; postsynaptic membrane; synaptic cleft
Synapse
The junction between two neurons or a neuron and a muscle where signal transmission occurs.
Presynaptic Terminal
The end of a nerve fiber where neurotransmitters are released to signal to the next neuron across a synapse.
Synaptic Cleft
The gap between two nerve cells across which neurotransmitters are released to transmit nerve impulses.
- Comprehend the composition and role of synapses, distinguishing between chemical and electrical types.
Verified Answer
AB
Abu Bakar RahmanJun 20, 2024
Final Answer :
B
Explanation :
The correct sequence for the structures involved in activity at a chemical synapse starts with the presynaptic terminal (where neurotransmitters are released), followed by the synaptic cleft (the gap between the presynaptic and postsynaptic neurons), and ends with the postsynaptic membrane (where neurotransmitters bind to receptors).
Learning Objectives
- Comprehend the composition and role of synapses, distinguishing between chemical and electrical types.