Which term describes the act or process of inhaling and exhaling; breathing?

Which term describes the act or process of inhaling and exhaling; breathing?

• A. Respiration
• B. Metabolism
• C. Rhythm
• D. Radial

Answer: (A)

Breathing is described by the word respiration. It refers to the act of inhaling and exhaling air, the process your body uses to move air in and out of the lungs. There are two related uses of respiration: external respiration, which is the breathing itself, and cellular respiration, which is how cells use oxygen to generate energy. The other terms don’t fit this specific idea: metabolism is the wide-ranging chemical processes that produce and use energy in the body, not the act of breathing; rhythm means a pattern or tempo; radial relates to the radius, a geometric concept. So respiration is the correct term for inhaling and exhaling.

Breathing is described by the word respiration. It refers to the act of inhaling and exhaling air, the process your body uses to move air in and out of the lungs. There are two related uses of respiration: external respiration, which is the breathing itself, and cellular respiration, which is how cells use oxygen to generate energy. The other terms don’t fit this specific idea: metabolism is the wide-ranging chemical processes that produce and use energy in the body, not the act of breathing; rhythm means a pattern or tempo; radial relates to the radius, a geometric concept. So respiration is the correct term for inhaling and exhaling.