At 37 °C the equilibrium concentration of Ca²+ inside a cell is 0.054 M and outside is 0.027 M. T cell membrane is permeable to Ca2+ and CI¯. The only ion present in addition to Ca2+ and CI- i a protein (Prin*/-) inside the cell. The protein holds a single positive or negative charge. The Cl- is a

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At 37 °C the equilibrium concentration of Ca²+ inside a cell is 0.054 M and outside is 0.027 M. The
cell membrane is permeable to Ca2+ and CI". The only ion present in addition to Ca2+ and Cl- is a
protein (Prin*/-) inside the cell. The protein holds a single positive or negative charge. The Cl- is at
equilibrium across the membrane while the protein is inside the cell and cannot permeate the
membrane. What is the concentration of Prin+/- (in M)?
Transcribed Image Text:At 37 °C the equilibrium concentration of Ca²+ inside a cell is 0.054 M and outside is 0.027 M. The cell membrane is permeable to Ca2+ and CI". The only ion present in addition to Ca2+ and Cl- is a protein (Prin*/-) inside the cell. The protein holds a single positive or negative charge. The Cl- is at equilibrium across the membrane while the protein is inside the cell and cannot permeate the membrane. What is the concentration of Prin+/- (in M)?
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