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A hiker on Mount Everest exhausts their food. In these low oxygen conditions, with no food, the hiker runs out of glucose and ketone bodies important for energy production in neurons, and hence produces lower levels of ATP. 1. Of the following proteins, which protein's function is most directly/likely to be affected and why? (Ligand-gated Na* / K+ channels, Ligand-gates Cl¯ channels, Na* / K+, Voltage-gated Na channels, Ligand-gated K+ channels) 2. Would the resting membrane potential be closer to or further away from the threshold voltage? Or, would there be no change in resting membrane potential? Please briefly explain your answer. 3. Compared to normal conditions, is this hiker more likely, less likely, or is there no change in likelihood to generate an action potential in response to the same excitatory input?

A hiker on Mount Everest exhausts their food. In these low oxygen conditions, with no food, the hiker runs out of glucose and ketone bodies important for energy production in neurons, and hence produces lower levels of ATP. 1. Of the following proteins, which protein's function is most directly/likely to be affected and why? (Ligand-gated Na* / K+ channels, Ligand-gates Cl¯ channels, Na* / K+, Voltage-gated Na channels, Ligand-gated K+ channels) 2. Would the resting membrane potential be closer to or further away from the threshold voltage? Or, would there be no change in resting membrane potential? Please briefly explain your answer. 3. Compared to normal conditions, is this hiker more likely, less likely, or is there no change in likelihood to generate an action potential in response to the same excitatory input?

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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A hiker on Mount Everest exhausts their food. In these low oxygen conditions, with no food, the hiker runs out of glucose and ketone bodies important for energy production in neurons, and hence produces lower levels of ATP. 1. Of the following proteins, which protein's function is most directly/likely to be affected and why? (Ligand-gated Na* / K+ channels, Ligand-gates Cl¯ channels, Na* / K+, Voltage-gated Na channels, Ligand-gated K+ channels) 2. Would the resting membrane potential be closer to or further away from the threshold voltage? Or, would there be no change in resting membrane potential? Please briefly explain your answer. 3. Compared to normal conditions, is this hiker more likely, less likely, or is there no change in likelihood to generate an action potential in response to the same excitatory input?
Transcribed Image Text:A hiker on Mount Everest exhausts their food. In these low oxygen conditions, with no food, the hiker runs out of glucose and ketone bodies important for energy production in neurons, and hence produces lower levels of ATP. 1. Of the following proteins, which protein's function is most directly/likely to be affected and why? (Ligand-gated Na* / K+ channels, Ligand-gates Cl¯ channels, Na* / K+, Voltage-gated Na channels, Ligand-gated K+ channels) 2. Would the resting membrane potential be closer to or further away from the threshold voltage? Or, would there be no change in resting membrane potential? Please briefly explain your answer. 3. Compared to normal conditions, is this hiker more likely, less likely, or is there no change in likelihood to generate an action potential in response to the same excitatory input?
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