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The apical surfaces of hair cells are exposed to an unusual extracellular fluid called endolymph. Endolymph is relatively similar in ionic composition to cytoplasm: Select one: a. it is high in Na+ (-150 mM), low in K+ (2 mM), and relatively low in Ca 2+ (100 μm). (4 mM), and relatively low in Ca 2+ (150 µm). b. it is high in K+ (250 mM), low in Na+ c. It is high in K+ (150 mM), low in Na+ d. It is high in Ca 2+ (-250 mM), low in Na+ (2 mM), and relatively low in Ca 2+ (100 µm). (2 mM), and relatively low in K+ (150 µm). O O

The apical surfaces of hair cells are exposed to an unusual extracellular fluid called endolymph. Endolymph is relatively similar in ionic composition to cytoplasm: Select one: a. it is high in Na+ (-150 mM), low in K+ (2 mM), and relatively low in Ca 2+ (100 μm). (4 mM), and relatively low in Ca 2+ (150 µm). b. it is high in K+ (250 mM), low in Na+ c. It is high in K+ (150 mM), low in Na+ d. It is high in Ca 2+ (-250 mM), low in Na+ (2 mM), and relatively low in Ca 2+ (100 µm). (2 mM), and relatively low in K+ (150 µm). O O

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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The apical surfaces of hair cells are exposed to an unusual extracellular fluid called endolymph. Endolymph is relatively similar in ionic composition to cytoplasm: Select one: O O a. it is high in Na+ (-150 mM), low in K+ b. It is high in K+ (250 mM), low in Na+ c. it is high in K+ (150 mM), low in Na+ d. It is high in Ca 2+ (-250 mM), low in Na+ (-2 mM), and relatively low in Ca 2+ (100 μM). (-4 mM), and relatively low in Ca 2+ (150 µm). (2 mM), and relatively low in Ca 2+ (100 µm). (2 mM), and relatively low in K+ (150 M).
Transcribed Image Text:The apical surfaces of hair cells are exposed to an unusual extracellular fluid called endolymph. Endolymph is relatively similar in ionic composition to cytoplasm: Select one: O O a. it is high in Na+ (-150 mM), low in K+ b. It is high in K+ (250 mM), low in Na+ c. it is high in K+ (150 mM), low in Na+ d. It is high in Ca 2+ (-250 mM), low in Na+ (-2 mM), and relatively low in Ca 2+ (100 μM). (-4 mM), and relatively low in Ca 2+ (150 µm). (2 mM), and relatively low in Ca 2+ (100 µm). (2 mM), and relatively low in K+ (150 M).
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