What is respiration? Define external
and internal respiration.
Answers
Answer:
Respiration:
∙ The body needs energy to perform various vital activities.
∙ This energy is obtained mainly by oxidation of carbohydrates & fats. Oxidation of these substances consumes O2 & release CO2
. The process of consumption of O2and the release of CO2
is termed as respiratory exchange.
∙ According to Carter, respiration involves external respiration, internal respiration & cellular respiration.
∙ Mammals exhibit aerial respiration which needs a respiratory system.
∙ The respiratory system concerns with an intake of O2and giving out of CO2
.
Types of Respiration:
The respiration is of two types:
∙ External respiration: It takes place in the lung alveoli. taking in of O2 and giving out of CO2
is termed as external respiration or Breathing or Ventilation. It is a physical process.
∙ Internal respiration: In take of O2by the body cells and production of CO2and ATP is called internal or cellular respiration.
The internal respiration is of two types:
∙ Aerobic respiration: Cellular respiration in the presence of O2is called aerobic respiration.
∙ Anaerobic respiration: The cellular respiration in lack of O2 is called anaerobic respiration.
Answer:
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