Write two water conducting tissues present in plants. How does
water enter continuously into the root xylem ?
Explain why plants have low energy needs as compared to
animals.
Answers
Tracheids and vessels are two water conducting hollow tubes present in the vascular tissue called is xylem. Xylem in a plant is responsible for transporting water from the roots to other parts of the plant.
Water enter continuously into the root xylem bye transpiration and the pressure gradient which is formed in the roots of the plant.
Transportation of water from the leaves makes a transpirational pull in there which causes the roots to take out water from the ground in order to fill up the vacancy caused.
Plants have low energy needs as compared to animals because :
● there is no energy required for the movement of plants as they stay intact at one place and do not need to move from one place to another like animals do.
● cells present in plants are not all dead like sclerenchyma and due to the presence of search cells plants require less energy.
● also plants make their own food and the energy required for that is obtained from the Sun.
Water leading tissues are Xylem and Root Pressure By Transpiration Plants have low vitality needs as their bodies are loaded up with dead tissues which don't require any vitality.
The xylem, vessels and tracheids of the roots, stems and leaves are interconnected to frame a nonstop arrangement of water directing channels achieving all pieces of the plants.
It transports water and dissolvable mineral supplements from the roots all through the plant.