GK For Competitive Exams in Biology-Transportation in Plants

INTRODUCTION

Plants take water and minerals from the soil through the roots and transport it to the leaves. The leaves prepare food for the plant, using water and carbon-dioxide during photosynthesis.

This process of photosynthesis prepares food for the plant which is necessary for energy to the cells. The cells use this energy to carry out vital activities of life. Therefore, food must be made available to each and every cell.

Thus, a proper system of transportation is required for the transportation of food, water and minerals. This system of transportation includes:

  • Roots

Transport of Water and Minerals

Function of Roots

  • Plants absorb water and minerals by the roots.

Vascular Tissue

  • Plants have pipe-like vessels to transport water and nutrients from the soil.

Transport of water

  • In xylem tissue, vessels and tracheids of the roots stem and leaves are interconnected to form a continuous system of water-conducting channels reaching all the parts of the plant.

Transpiration and its Benefits

  • When the plant has an adequate supply of water, the water which is lost through the stomata is replaced by water from the xylem vessels in the leaf.

Transport of Food & other Substances

  • The method of transportation of products of metabolic processes, particularly photosynthesis, from leaves, where they are formed, to other parts of the plant is called translocation.

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