In the Proximal Tubule, Hydrogen Ions Are Transported into the Filtrate

question 37

Multiple Choice

In the proximal tubule, hydrogen ions are transported into the filtrate by

• A)Na+/H+countertransporters only.
• B)H+ primary active transporters only.
• C)H+/Cl- cotransporters only.
• D)both Na+/H+ countertransporters and H+ primary active transporters.
• E)both Na+/H+ countertransporters and H+/Cl- cotransporters.

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Definitions:

Oligopoly

A market structure characterized by a small number of firms controlling a large portion of the market, potentially leading to limited competition and higher prices for consumers.

Market Demand Curve

A graphical representation showing the relationship between the price of a good and the total quantity of the good that all consumers in the market are willing to purchase at that price.

Profit-maximizing Output

The point of production where a company attains its maximum profit, occurring when marginal revenue is equal to marginal cost.

Tacit Collusion

Collusion occurs when price- and quantity-fixing agreements among producers are explicit. Tacit collusion occurs when such agreements are implicit.