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C. A typical molarity for one such neurotransmitter, acetylcholine, is 100 micromolar (10 molar). Given that the molecular weight of acetylcholine is -150 D and it has a diameter of about 0.5 nm, find its specific volume, s, and separateness, d.

C. A typical molarity for one such neurotransmitter, acetylcholine, is 100 micromolar (10 molar). Given that the molecular weight of acetylcholine is -150 D and it has a diameter of about 0.5 nm, find its specific volume, s, and separateness, d.

Human Anatomy & Physiology (11th Edition)
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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**Text Transcription:** A critical part of the signaling between neurons is the release of neurotransmitter chemicals from the neuron with an incoming signal into a space between neurons (synapse) where the chemical can diffuse and be detected by a receptor on the neuron receiving the signal. A picture is shown in the figure at the right. The diagram is schematic and doesn't give an idea of the density of the molecules. Let's figure them out. C. A typical molarity for one such neurotransmitter, acetylcholine, is 100 micromolar (10^-4 molar). Given that the molecular weight of acetylcholine is ~150 D and it has a diameter of about 0.5 nm, find its specific volume, s, and separateness, d. D. Compare these to the specific volume and separation distances you found for the molecules of water and discuss whether you think that the jiggling motion of the acetylcholine molecules are primarily driven by collisions with the jiggling water molecules, or by collisions with each other. **Diagram Explanation:** The diagram depicts the synaptic transmission process. Illustrated components include: - **Neurotransmitter Molecules:** Released from the neuron. - **Synapse:** The space between neurons where neurotransmitters diffuse. - **Receptor:** Located on the receiving neuron, detecting the neurotransmitters. The diagram is schematic, showing a general idea of the process without detailing molecular density. *Source: Looie496, US National Institutes of Health, National Institute on Aging, public domain.*
Transcribed Image Text:**Text Transcription:** A critical part of the signaling between neurons is the release of neurotransmitter chemicals from the neuron with an incoming signal into a space between neurons (synapse) where the chemical can diffuse and be detected by a receptor on the neuron receiving the signal. A picture is shown in the figure at the right. The diagram is schematic and doesn't give an idea of the density of the molecules. Let's figure them out. C. A typical molarity for one such neurotransmitter, acetylcholine, is 100 micromolar (10^-4 molar). Given that the molecular weight of acetylcholine is ~150 D and it has a diameter of about 0.5 nm, find its specific volume, s, and separateness, d. D. Compare these to the specific volume and separation distances you found for the molecules of water and discuss whether you think that the jiggling motion of the acetylcholine molecules are primarily driven by collisions with the jiggling water molecules, or by collisions with each other. **Diagram Explanation:** The diagram depicts the synaptic transmission process. Illustrated components include: - **Neurotransmitter Molecules:** Released from the neuron. - **Synapse:** The space between neurons where neurotransmitters diffuse. - **Receptor:** Located on the receiving neuron, detecting the neurotransmitters. The diagram is schematic, showing a general idea of the process without detailing molecular density. *Source: Looie496, US National Institutes of Health, National Institute on Aging, public domain.*
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