Question

Internal respiration implies

• A. Oxygen uptake by tissue cells
• B. Tissue oxidation
• C. Cabon dioxide elimination from tissue cells
• D. All of the above

Answer 1

Answer: (D)

All of the above

Respiration is the process by which oxygen and carbon dioxide diffuses in and out of the body respectively. Internal respiration refers to gas exchange between the cells of the body and the blood across the respiratory membrane in the metabolizing tissues. It include the uptake of oxygen i.e. oxidation by cells of the tissue and carbon dioxide elimination from tissue cells.

So, the correct answer is 'All of the above'.