The figure below illustrates a generic model of neurotransmitter secretion and reception across a synapse. receptor- axon- vesicle presynaptic neuron nerve impulse (63 Respond in complete sentences. synaptic space postsynaptic neuron A model of chemical signaling across a synapse (a) Describe the structure of the neuron synapse using proper vocabulary. (b) Explain the direction of the nerve impulse. transporter -neuro transmitter -dendrite
Enzyme kinetics
In biochemistry, enzymes are proteins that act as biological catalysts. Catalysis is the addition of a catalyst to a chemical reaction to speed up the pace of the reaction. Catalysis can be categorized as either homogeneous or heterogeneous, depending on whether the catalysts are distributed in the same phase as that of the reactants. Enzymes are an essential part of the cell because, without them, many organic processes would slow down and thus will affect the processes that are important for cell survival and sustenance.
Regulation of Enzymes
A substance that acts as a catalyst to regulate the reaction rate in the living organism's metabolic pathways without itself getting altered is an enzyme. Most of the biological reactions and metabolic pathways in the living systems are carried out by enzymes. They are specific for their works and work in particular conditions. It maintains the best possible rate of reaction in the most stable state. The enzymes have distinct properties as they can proceed with the reaction in any direction, their particular binding sites, pH specificity, temperature specificity required in very few amounts.
**Description of the Diagram:**
The diagram shows two neurons: the presynaptic neuron (top) and the postsynaptic neuron (bottom). In between is the synaptic space or synaptic cleft.
- **Presynaptic Neuron:**
- **Axon:** Extends from the top into the presynaptic end.
- **Vesicles:** Small sacs containing neurotransmitters located near the axon terminal.
- **Presynaptic Membrane:** The area where vesicles release neurotransmitters into the synaptic cleft.
- **Nerve Impulse:** Moves down the axon towards the presynaptic neuron.
- **Synaptic Space (Cleft):**
- **Neurotransmitters:** Represented as small red circles, released into this space.
- **Postsynaptic Neuron:**
- **Receptors:** Located on the surface of the postsynaptic membrane, these bind to the neurotransmitters.
- **Dendrite:** Extends from the postsynaptic neuron.
- Once neurotransmitters bind to the receptors, the signal is transmitted into the postsynaptic neuron.
**Questions:**
(a) **Describe** the structure of the neuron synapse using proper vocabulary.
(b) **Explain** the direction of the nerve impulse.
Respond in complete sentences.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F42dff072-7d42-411c-b912-034f8f72c397%2F0fb7ecd6-d736-473e-a6df-c86671742e37%2Fpn36od_processed.png&w=3840&q=75)
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