Transport system is like the arteries and veins
in the human body. It helps in connecting one
part of the country with the other; it facilitates
the movement of raw materials, fuel, machinery,
to the points of production and finished goods
to the points of marketing and consumption
IMPORTANCE
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EXPLANATION:
To lead a normal daily life, we need several items such as food grains, vegetables, fruits, clothes, medicines, fuel, electricity, among others. Most of these are produced at some other place and are transported to the place where we live.
We might have observed goods being transported daily by road, rail, ships, and airplanes. If the transport of these items is stopped, our routine would be disturbed and we will face many difficulties.
A lot of waste material is produced in our homes, in shops, and in industries. These should be collected and transported to far off place for disposal. If the transport system fails, our surroundings become dirty and stinky.
Similarly, transport systems are present in the bodies of all the organisms and are essential to keep the cells alive and healthy. Failure of these transport systems would result in disease.
The system which transports the materials from where they are produced and the place where they are needed is called transport system.
Cells of our body require various substances to live, grow, and carry out their activities. So they should be supplied with food and substances such as amino acids, fatty acids, vitamins, and minerals. Cells also require water. All these substances are derived from the food we eat and the water we drink. To supply all these materials, we need a transport system.
At the same time, undigested materials should be removed from the digestive system.
Oxygen is required for the food to be oxidized. Oxygen is taken into the lungs from where it should be transported to every cell in the body. Carbon dioxide produced during the oxidation process should be collected and transported to the lungs for elimination.
Several waste materials produced in the cells are to be collected and are transported to various sites in the body for disposal.
Hormones are the chemicals that control and co-ordinate the functions in the body. They are produced by endocrine glands present at different locations in the body and work at different places. Therefore hormones are to be transported.
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