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

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Definitions:

Double Effect

A principle in ethics that allows actions which have both a positive and a negative effect, especially in medical ethics where the aim is to relieve suffering even if it may hasten death.

Cosmetic Surgery

Medical procedures performed to enhance or change one's appearance for cosmetic rather than medical reasons.

Totality Principle

A philosophical concept that considers the moral decisions based on the totality of circumstances, including all moral rules and principles.

Beneficence

An ethical principle that involves acting in the best interest of others by promoting their well-being.