Organize the items listed into the proper sequence of events for gas exchange.
A: O₂ is transported to cells by circulatory system.
B: O₂ is drawn into the lungs during inhalation.
C: Cells use O₂ and generate CO_2.
D: CO₂ is exhaled.
E: The circulatory system transports CO₂ to the lungs.

Question

Quizplus · Accepted Answer

O₂ is first drawn into the lungs (B), then transported to cells (A), where it is used and CO₂ is generated (C). CO₂ is then transported back to the lungs (E) and exhaled (D).

Organize the Items Listed into the Proper Sequence of Events