QUESTION 1 1 points Save Answer In a typical cell, if the concentration of K+ in
ID: 3520447 • Letter: Q
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QUESTION 1 1 points Save Answer In a typical cell, if the concentration of K+ in the ECF was increased from 5 mM to 7 mM, which of the following would occur? (Select all that apply; wrong answers earn negative points) a. The membrane would depolarize. b. The membrane would hyperpolarize. c. The membrane potential would become more negative. d. The membrane potential would become more positive. e. The membrane potential would become less negative. f. The membrane potential would become less positive. g. The membrane potential would not change. QUESTION 2 1 points Save Answer In a typical cell, if the concentration of K+ in the ECF was decreased from 5 mM to 3 mM, which of the following would occur? (Select all that apply; wrong answers earn negative points) a. The membrane would depolarize. b. The membrane would hyperpolarize. c. The membrane potential would become more negative. d. The membrane potential would become more positive. e. The membrane potential would become less negative. 1. The membrane potential would become less positive. g. The membrane potential would not change.Explanation / Answer
Question 1: The correct answer is the membrane would depolarzie.
Explanation:
Increase k+ level in the ECF referred as hyperkalemea. When it occurs then equilibrium potential of k+ ion increases. It results the depolarization of membrane potential.
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Question 2: The correct answer is the membrane would hyperpolarize.
Explanation:
This condition is known as Hypokalemea. Decrease k+ ions decreases the concentration gradient . And this causes more k+ions to flow out from the cell than normal. Which make inside of the cell more negative and hyperpolarization occurs.
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