
In the human body, respiration is the process of gaseous exchange between the body and the outer environment. The gases such as oxygen and carbon dioxide are exchanged. Nose, pharynx, and larynx are involved as the conducting zone of the respiratory tract.

Answer to Problem 1E
Correct answer:
The correct answer is an option (c) and (d).
Explanation of Solution
Explanation/justification for the correct answer:
Option (c) and (d) diffusion of carbon dioxide from tissues to blood and diffusion of oxygen from the blood to tissues. In the human body, internal respiration is found as the process of diffusing oxygen from the blood into the interstitial fluid and cells. During this process, carbon dioxide is diffused from the cells to the blood. Hence the option (c) and (d) are the correct answer.
The explanation for the incorrect answer:
Option (a) ventilation. Ventilation is the process of both inhalation and exhalation in which the exchange of gases takes place between the environment and body system. So, this is an incorrect option.
Option (b) transport of oxygen in the blood. Transport of oxygen in the blood takes place during the process of respiration, but not specifically internal respiration. So, this is an incorrect answer.
Option (e) oxidative phosphorylation. Oxidative phosphorylation is found as the several
During internal respiration process, carbon dioxide is diffused from the cells to the blood. Hence, the option (c) and (d) are the correct answer.
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Chapter 16 Solutions
Principles of Human Physiology (6th Edition)
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