The Na+-K+ ATPase Uses the Free Energy of ATP Hydrolysis

question 21

Short Answer

The Na+-K+ ATPase uses the free energy of ATP hydrolysis in an active transport process to move Na+ and K+ across a membrane. What would the rate of nonmediated transport be given that the permeability coefficient for K+ through a human erythrocyte membrane is 2.4 × 10-10 cm/s. K+ ions must be moved from a concentration of 4 mM on the outside of the cell to 155 mM inside the cell?

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Definitions:

Dominant Strategy

A strategy in game theory that yields the best payoff for a player no matter what the other players do.

Combined Profit

The aggregate profit earned by combining the net incomes of two or more entities, businesses, or investment sources.

Nash Equilibrium

An idea in game theory where the strategy chosen by each player is the best option, taking into account the strategies adopted by all other participants in the game.

Annual Profit

The net income a company or individual earns in a fiscal year after all expenses are subtracted from total revenues.