differentiate between external and internal respiration
Answers
Internal respiration is the gas exchange between the systemic blood and tissues.
External respiration is the gas exchange between the lungs and blood.
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.
Answer:
Explanation:
EXTERNAL RESPIRATION -
it is a physiological process
it takes place along the respiratory surface along the lungs
also known as breathing
it is a process during which oxygen is taken up by capillaries of lung alveoli and carbon dioxide is released from blood.
INTERNAL RESPIRATION -
it is a biological process
takes place within the cells( i.e.., at cellular level)
it is the process in which oxygen is released to tissues or living cells and carbon dioxide is absorbed by the blood.