Question

Write a short note on mechanism in transport of higher plants

Answer 1

Xylem is responsible for the translocation of water and minerals salts from the root to the leaf by forces acting on ascent of this sap inthe plant , There are many theories that explain the ascent of water in the plant .

Answer 2

The two types of conducting tissues that perform the function of transport system in plants are:

1) Xylem- help in the transport of water

2) phloem- help in the transfer of food

Epidermis: The outer layer of the cells in the root of a plant is called epidermis. The thickness of epidermis is equal to one cell.

Endodermis: It is the layer of cells around the vascular tissue (xylem and phloem) in the root of a plant. Endodermis is the innermost layer of cortex.

Root cortex: It is the part of root between the epidermis and endodermis.

Root xylem: It is the xylem tissue present in the roots. It is present at the centre of the root.