Question

what is the difference between external and internal respiration

Answer 1

Explanation:

External Respiration: External respiration refers to the gas exchange across the respiratory membrane of lungs.

Internal Respiration: Oxygen diffuses out from the blood into tissue during internal respiration. ... Internal Respiration: Carbon dioxide diffuses into the blood from the tissue during internal respiration.

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Answer 2

Answer:

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Explanation:

Internal respiration occurs when respiration takes place in each cell. Oxygen is used in the mitochondria of the cell to help release energy in food molecules. Because this happens inside the cell it is called internal respiratiin.

External respiration is the act of breathing . We are moving air that contains oxygen into the lungs where it will be carried by the bloodstream to each cell Then carbon dioxide is released as a waste product from burning the fuel. It travels back to the lungs to be expelled.All animals carry out both types of respiration.