What Stops Oxygen from Diffusing Back into the Lungs After

question 13

Multiple Choice

What stops oxygen from diffusing back into the lungs after it is in the blood?

• A)Diffusion slows once there are equal concentrations in the blood and lungs.
• B)The oxygen levels in the alveoli and blood move toward equilibrium.
• C)The blood is flowing past the alveoli in capillaries and out to the heart.
• D)Oxygen does diffuse back into the lungs in small amounts, but the overall movement of oxygen is from the high concentration in the lungs to the low concentration in the blood.
• E)All of the above are correct.

---

Definitions:

Financial Reward

A monetary benefit or compensation given to individuals as recognition for their work or achievement.

Satisfaction

The feeling of fulfillment or contentment with one's achievements, job, or situation.

Challenge

A task or situation that requires a person to put in effort or use skills to overcome difficulties.

Recognition

The acknowledgment or appreciation of someone's efforts, achievements, or status, often used as a form of motivation or reward.