Explain Transportation in plants.
Answers
Answer:
Plant transport systems move energy from leaves and raw materials from roots to all their parts. The xylem (tissue) moves water and minerals obtained from the soil to all other parts of the plants.
Plants have two different types of 'transport' tissue. Xylem transports water and solutes from the roots to the leaves, phloem transports food from the leaves to the rest of the plant.
Plants use two different strategies; transpirational pull and root pressure for the transportation of water and minerals during day and night.
Root Pressure is the positive pressure created by the movement of water from the roots to the soil for upward movement of water. The effect of root pressure in the transport of water is more important at night.
Transpiration pull is the pull of water as a result of tension created by transpiration in the aerial parts of the plant. It is the major driving force of water movement upwards in a plant during the day. Transpiration is the process by which water evaporates from the leaves, which results in more water being drawn up from the roots.
Explanation:
In plants, transportation of water and minerals as well as prepared food materials required mainly. It takes place by the means of vascukar tissue xylem & phloem.
Xylem helps in the conduction of water and minerals from root to upper parts of the plant for photosynthesis and transpiration.
Phloem transport prepared food material from photosynthetic sites to different part of the plant by directionally.