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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes5 Marks
Question
What is the difference between external and internal respiration.
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Answer

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.

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