Question

What is respiration? Define external
and internal respiration.​

Answer 1

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 2

Answer:

sabi questions kisne delete kr diye aapke