Glucose Absorption

question 59

Multiple Choice

Glucose absorption:

• A) occurs without the need for a transport protein in muscle cells.
• B) needs an active Na+ pump in liver cells.
• C) requires insulin in the brain.
• D) is stimulated by glucagon in the liver.
• E) occurs against a concentration gradient in the intestinal mucosa.

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Definitions:

Marginal Revenue

The increased earnings a business obtains from the sale of one extra item or service.

Marginal Cost

The increase in total cost that arises from producing one additional unit of a product.

Output

The quantity of goods or services produced in a given time period by a firm, industry, or country.

Economic Profit

The divergence between aggregate income and total outlays, inclusive of both tangible and intangible expenses.