How Is Oxygen Able to Move in the Direction Indicated

question 24

Multiple Choice

How is oxygen able to move in the direction indicated in this diagram?

• A) Partial pressure of oxygen is lower in the blood
• B) Partial pressure of oxygen is higher in the blood
• C) The cells of the lungs are actively transporting oxygen
• D) The cells of the blood are actively transporting oxygen

---

Definitions:

Organism's Responding

The manner in which an organism reacts to stimuli or changes in its environment.

Conditioned Response

A learned reaction to a previously neutral stimulus that occurs as a result of conditioning, typically demonstrated in Pavlov’s dog experiment.

Unconditioned Response

A spontaneous, innate response to a trigger that happens without any previous training or conditioning.

Conditioned Stimulus

A previously neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.