When Oxygen Delivery Becomes Insufficient to Support a Runner's Aerobic

question 46

Multiple Choice

When oxygen delivery becomes insufficient to support a runner's aerobic metabolism,cells switch to an emergency mode in which ________.

• A)ATP is generated less efficiently by harvesting the heat energy in a cell
• B)ATP is inefficiently produced and lactic acid is generated as a by-product
• C)lactic acid is broken down to produce smaller amounts of ATP
• D)carbon dioxide is joined with water to generate much smaller amounts of ATP

---

Definitions:

Variable Cost

Financial obligations that adjust based on the level of manufacturing.

Earnings Before Interest And Taxes

A measure of a company's profitability that excludes interest and income tax expenses.

Depreciation Expense

The systematic allocation of the cost of an asset over its useful life, reflecting how the asset's value decreases over time due to use or obsolescence.

Tax Rate

The specified rate at which a person’s or company’s income is taxed.