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Transportation in plants & animals

Transportation
Human beings like other multicellular organism need regular supply of food, oxygen etc. This function is performed by circulatory system.

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Double circulation
Blood travels twice through the heart in one complete cycle of the body.

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  • Pulmonary Circulation : Blood moves from the heart to the lungs and back to the heart.
  • Systemic Circulation : Blood moves from the heart to rest of the body and back to the heart.

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Lymph - a yellowish fluids escapes from the blood capillaries into theintercellular spaces contain less proteins than blood. Lymph flows from the tissues to the heart assisting in transportation and destroying germs.

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Transpiration - It is the process of loss of water as vapour from aerial parts of the plant.

Function :

(a) Absorption and upward movement of water and minerals by creating PULL.
(b) Helps in temperature regulation in plant.

Translocation - Transport of food from leaves (food factory) to different part of the plant is called Translocation.

 

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