You are recording from a funny-looking cell. You hold the cell atvarious voltages and record the size of the currents. The results areto the right. In these graphs, each line represents a current at adifferent given voltage.The top, "control" plot represents the current responses to thevarious voltages when the extracellular concentration of K+ was5mM. The bottom plot represents the responses to the samevoltages, but the extracellular concentration of K+ is now 20mm.Do these results indicate that this cell is permeable to K+?Justify your answer. (suggestion: 1-2 sentences)control20 mM K

Answered: You are recording from a funny-looking…

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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You are recording from a funny-looking cell. You hold the cell at
various voltages and record the size of the currents. The results are
to the right. In these graphs, each line represents a current at a
different given voltage.
The top, "control" plot represents the current responses to the
various voltages when the extracellular concentration of K+ was
5mM. The bottom plot represents the responses to the same
voltages, but the extracellular concentration of K+ is now 20mm.
Do these results indicate that this cell is permeable to K+?
Justify your answer. (suggestion: 1-2 sentences)
control
20 mM K

Expert Solution

Step 1: Introduction:

This experiment investigates the permeability of a cell to K+ ions. By comparing the current responses of the cell to different voltages when the extracellular K+ concentration is varied, the researchers can determine whether K+ ions are able to diffuse across the cell membrane.

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