Transportation in Animals Class 10 Notes

Transportation is the life process in which a substance (Made or absorbed) in one part of the body of an organism is carried to other parts of its body.

  • The blood, pumped by the heart, travels all around the body in Blood vessels. It leaves the heart in Arteries and returns in Veins.
  • Valves, present in the heart and veins, ensure a one-way flow for the blood. 
  • As blood enters an organ, the arteries divide into smaller arterioles, which supply capillaries. 
  • In these vessels the blood moves much more slowly, allowing the exchange of materials such as oxygen and glucose, carbon dioxide and other wastes.
  • Blood leaving an organ is collected in venules, which transfer it on to larger veins.

Transportation in Animals

Transportation in Amphibians and Reptiles

  • They have a three-chambered heart (two atria and single ventricle) and possess a double circulation. 
  • They can tolerate some mixing of oxygenated and deoxygenated blood.
    They do not use energy to maintain their body temperature. 
  • Mostly reptiles have a three chambered heart. However, crocodiles’ hearts are four chambered like that of birds and mammals.

Also Check – Composition Of Blood

Transportation in Amphibians
Transportation in Reptiles

Also Check – Transportation in Human beings

Transportation in Bird And Mammals 

  •  In birds and mammals, the heart is four-chambered. 
  • There is separation of oxygenated blood from deoxygenated blood in all including humans.
  • This allows a highly efficient supply of oxygen to the body.
    This is because these animals have high energy needs. 
  • They use this energy to maintain their body temperature.
  • They are called warm-blooded animals.
  • All animals having four chambered hearts have double circulation in which the blood passes through the heart twice’ in one complete cycle of the body. 
  • In the human circulatory system, the pathway of blood from the heart to the lungs and back to the heart is called pulmonary circulation and the pathway of blood from the heart to the rest of the body and back to the heart is called the systemic circulation.
  • These two types of circulation are collectively called double circulation.

Transportation in Bird

Also Check – Transportation in Plants

Transportation in Fishes

  • Two chambered heart is present and the blood is pumped to the gills, where it gets oxygenated and supplied directly to rest of the body.
  • Blood goes only once through the heart during one cycle of circulation (single circulation).
single circulatory system in fish

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