Question

Tissue respiration is a type of

• A. External respiration
• B. Internal respiration
• C. Encretion
• D. Expiration

Answer 1

The correct option is B Internal respiration

External respiration occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses into the alveolar air. Internal respiration occurs in the metabolizing tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells. Inspiration and expirations are breath in and breath out processes.

Therefore, the correct answer is option B.