What Would Decrease Diffusion of a Gas Across the Alveolar/pulmonary

question 228

Multiple Choice

What would decrease diffusion of a gas across the alveolar/pulmonary capillary membrane?

• A) an increase in thickness of the membrane
• B) an increase in surface area of the membrane
• C) an increase in the partial pressure gradient
• D) smaller molecular size

---

Definitions:

Conditioned Response

A learned response to a previously neutral stimulus that becomes elicited by the stimulus after repeated associations with an unconditioned stimulus.

Lemon Juice

A citrus liquid obtained from lemons, used primarily for its flavoring and culinary properties, notable for its high vitamin C content.

Second-Order Conditioning

A form of learning in which a neutral stimulus is first made meaningful through classical conditioning. Then, that stimulus (the CS) is paired with a new, neutral stimulus until the new stimulus also elicits the conditioned response.

CS-US Relationship

The association between the conditioned stimulus (CS) and the unconditioned stimulus (US) in classical conditioning, leading to a learned response.