Which of the following describes the process of breathing?
A)Delivery of oxygen to cells
B)Forcible movement of oxygen molecules into the bloodstream
C)Delivery of carbon dioxide to cells
D)Movement of air into and out of lungs

Question

Quizplus · Accepted Answer

The process of breathing refers to the movement of air into and out of the lungs, which involves inhaling oxygen and exhaling carbon dioxide. Therefore, choice D is the correct answer as it accurately describes the process of breathing. Choices A and C describe the delivery of gases to cells, but do not specifically pertain to the act of breathing. Choice B is incorrect as oxygen molecules are typically transported into the bloodstream through passive diffusion rather than a forcible movement.

Which of the Following Describes the Process of Breathing