Benefit Of Trees Presentation (2).ffpptx

broo

1. Transport in Plants

2. Plant consume about 120L( 32gallons of water during summer. This is 30times more than a what a person needs. Water travels generally one- way pathfrom roots through stems to leaves, then out into the environment. A steady supply of water enables a plant carry out photosynthesis. Over 90%of plant is water . With enough water, plants remain crisp and cells maintain their rigidity so as plant can erect. Most important WATER TRANSPORT substances in plants.

3. Plants have roots for two chief reasons: to anchor itself to the ground and to absorb water and minerals from the soil. A plant absorbs water from the soil, The roots take water and dissolved minerals that coat the soil particles. Water normally enters the roots by diffusion. No energy is expended by the plant. One-Way Transport

4. The process are facilitated by a transport system of vessels, which distribute water and carry nutrients up and down a plant.These vessels, analogous to blood vessels in humans are known as transport or vascular tissues in plants.

5. Xylem tissues has 2 functions carry water and dissolved minerals salts from the roots to the stems and leaves, and provide mechanical support with in the plant. Vascular Tissues in flowering plants are of two types: Phloem tissues conducts manufactured food from the green parts of the plants, especially the leaves, to the other parts of the plants. The process of transporting manufactured food by the phloem is called LOCATRANSTION .

6. Transpiration is the loss of water vapor from the aerial parts of the plant. It also pulls water and minerals salts up the plant. Transpiration

7. Transpiration drives the movement of water up through a plant. The evaporation of water from the plant surface supplies the energy to pull water through plants and even in tall trees.