Substrate B is NEURON X Axon terminal of a cholinergic neuron Substrate A Synthesis and packaging Into a vesicle Neurotransmitter break Substrate B Process F down by Enzyme D OProtein E Substrate B transport into the axon terminal Receptor C Substrate B is recycled to produce neurotransmitter Acetate Enzyme D NEURON Y acetylcholinesterase choline O tyrosine O acetyl coenzyme A
Substrate B is NEURON X Axon terminal of a cholinergic neuron Substrate A Synthesis and packaging Into a vesicle Neurotransmitter break Substrate B Process F down by Enzyme D OProtein E Substrate B transport into the axon terminal Receptor C Substrate B is recycled to produce neurotransmitter Acetate Enzyme D NEURON Y acetylcholinesterase choline O tyrosine O acetyl coenzyme A
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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![**QUESTION 43**
Substrate B is ___.
**Options:**
- acetylcholinesterase
- choline
- tyrosine
- acetyl coenzyme A
**Diagram Explanation:**
The diagram illustrates the axon terminal of a cholinergic neuron and provides a detailed depiction of the steps involved in neurotransmitter recycling and release.
**Key Components and Processes:**
1. **Synthesis and Packaging into a Vesicle (Step 1):**
- Substrate A is synthesized and packaged into vesicles within the neuron terminal.
2. **Neurotransmitter Breakdown by Enzyme D (Step 2):**
- After neurotransmitter release, it binds to Receptor C on the postsynaptic neuron and is then broken down by Enzyme D into acetate and Substrate B.
3. **Substrate B Transport into the Axon Terminal (Step 3):**
- Protein E facilitates the transport of Substrate B back into the axon terminal of Neuron X.
4. **Substrate B is Recycled to Produce Neurotransmitter (Step 4):**
- Process F involves the recycling of Substrate B, which combines with another component to reform the neurotransmitter.
**Diagram Legend:**
- **Substrate A:** Neurotransmitter before release.
- **Substrate B:** Component of the neurotransmitter after breakdown (choline).
- **Enzyme D:** Breaks down the neurotransmitter (e.g., acetylcholinesterase).
- **Protein E:** Involved in the reuptake of Substrate B.
- **Receptor C:** Post-synaptic receptor.
- **Process F:** Recycling mechanism for Substrate B to reform neurotransmitter.
Given the involved steps and substances in acetylcholine metabolism within cholinergic neurons, **Substrate B** in this context is **choline**.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F15f07b92-5703-4de4-9426-36c09b5d48af%2Fdde3a7fc-a6ac-4a70-bce7-382619dd1811%2Fe781vth_processed.png&w=3840&q=75)
Transcribed Image Text:**QUESTION 43**
Substrate B is ___.
**Options:**
- acetylcholinesterase
- choline
- tyrosine
- acetyl coenzyme A
**Diagram Explanation:**
The diagram illustrates the axon terminal of a cholinergic neuron and provides a detailed depiction of the steps involved in neurotransmitter recycling and release.
**Key Components and Processes:**
1. **Synthesis and Packaging into a Vesicle (Step 1):**
- Substrate A is synthesized and packaged into vesicles within the neuron terminal.
2. **Neurotransmitter Breakdown by Enzyme D (Step 2):**
- After neurotransmitter release, it binds to Receptor C on the postsynaptic neuron and is then broken down by Enzyme D into acetate and Substrate B.
3. **Substrate B Transport into the Axon Terminal (Step 3):**
- Protein E facilitates the transport of Substrate B back into the axon terminal of Neuron X.
4. **Substrate B is Recycled to Produce Neurotransmitter (Step 4):**
- Process F involves the recycling of Substrate B, which combines with another component to reform the neurotransmitter.
**Diagram Legend:**
- **Substrate A:** Neurotransmitter before release.
- **Substrate B:** Component of the neurotransmitter after breakdown (choline).
- **Enzyme D:** Breaks down the neurotransmitter (e.g., acetylcholinesterase).
- **Protein E:** Involved in the reuptake of Substrate B.
- **Receptor C:** Post-synaptic receptor.
- **Process F:** Recycling mechanism for Substrate B to reform neurotransmitter.
Given the involved steps and substances in acetylcholine metabolism within cholinergic neurons, **Substrate B** in this context is **choline**.
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