You are recording the resting membrane potential from a neuron placed in a petri dish. The following oscilloscope tracing shows the voltage measured when a microelectrodetip is placed just inside the axon. The solid line on the oscilloscope is obtained when the neuron is placed in a control solution containing 5mM K+ and 150 mM Na+. Thesolution is then changed and a second recording is made, shown by the dashed line on the tracing. You can reasonably conclude this new solution:Membrane Potential (mV)98920-80HORRETAN0 1 2 3 4 5 6 7 8 9 10Time (sec)has decreased concentration of K+Ohas decreased concentration of Na+has increased concentration of K+1.has increased concentration of Na+

The correct answer to this question is option C i.e. increase concentration of K+.

Answered: You are recording the resting membrane…

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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Similar questions

Based on the graph, the threshold voltage appears to be approximately. (Base your answer to this question on the graph below depicting an action potential.) +60 mV. +30 mV. 0 mV. −30 mV. −60 mV.
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You have a photoreceptor cell in a dish. You are recording its membrane potential while flashing different intensities of light. Which of the following would you observe? Group of answer choices The cell hyperpolarizes, with brighter light causing more hyperpolarization than dimmer lights The cell depolarizes, with brighter light causing more depolarization than dimmer lights If the light is bright enough to reach threshold, it will fire an action potential No change in membrane potential will be observed
Which of the following can increase the likelihood of a neuron generating an action potential? tetrodotoxin (TTX) reducing the external concentration of K+ decreased diffusion of K+ through leak channels out of the neuron All of the above
If you are trying to study the presynaptic activity of a neurotransmitter using outside out patch clamp, would you add the neurotransmitter into the solution bath that the setup is placed into or would the neurotransmitter be added through the micropipette of the patch clamp?
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You apply a new drug to a different batch of neurons and record membrane potential changes in the presynaptic and postsynaptic neurons. You record an action potential in the presynaptic neuron and a change from -70mV to -90mV in the postsynaptic neuron. Your drug most likely allowed which ion into the postsynaptic neuron? Chloride GABA Glutamate Potassium
For the ion concentrations in Table 12.1, calculate the equilibriumpotentials for each ion species in squid axons and in mammalianmuscle fibers.
Which of the following would most likely occur if you experimentally depolarise the middle of an axon to threshold using an electronic probe? Question 24 options: an action potential will be initiated and proceed only in the normal direction toward the axon terminal no action potential will be initiated an action potential will be initiated and proceed only back toward the axon hillock two action potentials will be initiated and will proceed in opposite directions
Summarize the steps in generating an action potential as a flowchart. You can make your flowchart on paper and take a picture of it, or make it electronically. Be sure you’ve included: the location in the neuron and components of the neuron involved, the types of cellular transport and ions involved, how action potentials can be stimulated and inhibited. you can get the information from this: https://youtu.be/HYLyhXRp298
Using a stimulus intensity of 65 µA, produce an action potential in the simulated neuron on Metaneuron. What happens when tetrodotoxin is applied? Select the (one) CORRECT answer. O a. an action potential occurs O b.a small depolarisation, but no action potential occurs O c. no depolarisation occurs O d. the neuron becomes hyperpolarised
This is a Multipolar Neuron, please use ARROWS to label the following: Soma nucleus glial cells dendrites axon

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