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a.) b.) c.) d.) +20 mV +20 mV +20 mV +20 mV FE ↑ ↑ ↓ ↑ X+ Fc ↑ ↑ flux FE ↑ ↑ ↑ ↑ ↑ Y+ Fc flux ↑ ↑ 个 ↑ ↑ 1 ↑ ↓↓↓

a.) b.) c.) d.) +20 mV +20 mV +20 mV +20 mV FE ↑ ↑ ↓ ↑ X+ Fc ↑ ↑ flux FE ↑ ↑ ↑ ↑ ↑ Y+ Fc flux ↑ ↑ 个 ↑ ↑ 1 ↑ ↓↓↓

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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Separately, draw a table using arrows to depict the appropriate magnitude and direction of the forces and ion fluxes at different membrane potentials for a ligand-gated channel that is equally permeable to both ion X+ and ion Y+.   The equilibrium potential for ion X+ is -60 mV, and the equilibrium potential for ion Y+ is -20 mV. Which item (a, b, c, or d) best represents the forces and fluxes for a membrane potential of +20 mV? Upwards arrows means outward direction and downwards arrow means inward direction. The length of the arrow determines the magnitude. 

a.) b.) c.) d.) +20 mV +20 mV FE +20 mV ↑ ↑ +20 mV↓↓ ↑ X+ Fc Î Î ↑ ↑ flux FE ↑ ↑ ↑ ↑ Y t Fc flux ↑ ↑ ↑ ->> ↑ ←← ↓
Transcribed Image Text:a.) b.) c.) d.) +20 mV +20 mV FE +20 mV ↑ ↑ +20 mV↓↓ ↑ X+ Fc Î Î ↑ ↑ flux FE ↑ ↑ ↑ ↑ Y t Fc flux ↑ ↑ ↑ ->> ↑ ←← ↓
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