Determine the Rate of Diffusion in the Gas-Exchange Organ of an Air-Breathing

question 32

Multiple Choice

Determine the rate of diffusion in the gas-exchange organ of an air-breathing animal where the area for gas exchange in the lung is 200 mm²,the diffusion constant is 0.08,the PO₂ (partial pressure of oxygen) of the air in the lung is 140 mm Hg,the PO₂ in blood flowing into the lung is 90 mmHg,and the thickness of the gas exchange membrane is 0.001 mm.

• A)800,000
• B)125
• C)00032
• D)10,000,000

Understand the structure and function of different parts in the human digestive system.

Identify the nutritional components necessary for a balanced human diet.

Comprehend the process of digestion and nutrient absorption in the human body.

Recognize the significance of water and mineral intake in human nutrition.

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Definitions:

Income Before Income Taxes

The profit a company has generated before accounting for income tax expenses, often found on the income statement.

Times Interest Earned Ratio

A financial metric that measures a company's ability to cover its interest obligations with its earnings before interest and taxes (EBIT).

Potential Drop

An anticipated decrease in value or performance, often used in the context of stocks or electrical voltage.

Earnings

The profit a company generates during a particular period, often used as a measure of its financial performance.