What Drives the Movement of Oxygen from the Alveoli into the Bloodstream

question 96

Multiple Choice

What drives the movement of oxygen from the alveoli into the bloodstream?

• A) active transport against a concentration gradient
• B) facilitated diffusion down a concentration gradient
• C) facilitated diffusion against a concentration gradient
• D) diffusion down a concentration gradient
• E) the heart pumping the oxygen into the bloodstream

---

Definitions:

Percentage

A proportion or share in relation to a whole, expressed as a fraction of 100.

Increased Risk Test

The increased risk test is a legal principle used to determine liability in negligence cases, examining whether the defendant's actions significantly elevated the risk of harm to the plaintiff.

Workers' Compensation

An insurance type that offers medical benefits and substitutes for lost wages to workers hurt while performing job duties.

Nature of Employment

The essential characteristics and terms of a job, including duties, working conditions, and the employment agreement.