Concept explainers
What is the difference between
To determine: The differences between cellular and external respiration.
Introduction: Breathing describes the intake of oxygen into the body and expulsion of carbon dioxide out of the body. External respiration consists of two stages: breathing, and gas exchange.
Explanation of Solution
The following are the differences between cellular and external respiration:
No. | Characteristics | Cellular respiration | External respiration |
1. | Location | Cellular respiration occurs only in cells of the body. | External respiration occurs between cells and the atmosphere. |
2. | Gas exchange | Cellular respiration does not involve the gas exchange. | External respiration involves the gas exchange. |
3. | Oxygen movement | In cellular respiration, oxygen diffuses out from blood into the body tissue. | In, external respiration, oxygen diffuses from alveolar air into the blood. |
Cellular and external respiration can be differentiated based on location, gas exchange, and oxygen movement.
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