Transpiration in Plants and its types
sanaThe evaporation of water from the aerial part of plant is called transpiration. Transpiration is not a purely ph) sical process like evaporation. It is a vital phenomenon. It plays…
Theories of acent of SAP in Plants
Here are following theories which explain the ascent of sap in plants: a) Root pressure (b) Capillarity (c) Vital theory and (d) Cohesion-tension theory. (a) ROOT PRESSURE The hydrostatic pressure…
RANSLOCATION (ASCENT OF SAP
The upward movement of water in a plant is called-the ascent of sap. A large quantity of water is absorbed by the roots. It must be conducted upwards to the…
Factors affecting absorption of water by root
Following factors affect the absorption of water by root: I. Soil Temperature: The rate of water absorption increases with a rise in soil tempera' tire. lint this rise to a…
MECHANISM OF ABSORPTION OF WATER
WATER Absorption: of water*, root hairs: .[he absorption of \safer from the soil takes place tlitimigh the root hairs. Ihe root hairs are in contact with the wateriilms on the…
Anatomy of Root – Types of tissues in root
Root has following types of tissues: Side: The vascular tissue and the pericycle form a tube of conducting cells called stele. Xvlems are present in the centre of the root.…
Soil – Components and Organisms
Soil The complex composite mass made up of both inorganic and organic, components containing water and air is called soil. There are different amount of various components of soil. Their…
WATER RELATIONS
Water Potential (qp) The chemical potential of water is called water potential. The total kinetic energy of the molecules is called water potential. The chemical potential of water depends on…
OSMOSIS
The movement of solvent molecules from the region of higher concentration to the region of lower concentration through semi permeable membrane is called osmosis. Demonstration A thistle funnel is filled…
IMBIBITION
The special type of diffusion in which an imbibant absorbs water on its surface without dissolving in it is called imbibition. lmbibant is a hydrophilic surfaces like protein. starch or…