chitrasingh

Photosynthetic Unit: Photosynthetic unit may be defined as the minimum number of pigment molecules capable of acting cooperatively in a photochemical act to evolve one molecule of O2 or to […]

Application of fertilizers Most of the soils usually contain sufficient amounts of essential mineral elements for the better crop production. Some of them are, however, deficient in certain elements. These […]

SIGNIFICANCE OF TRANSPIRATION (Transpiration as a necessary evil) SIGNIFICANCE OF TRANSPIRATION Plant physiologists have argued about whether transpiration is advantageous or harmful to the plants. It is now well known […]

GUTTATION The process of exudation of liquid drops from the edges of leaves is called guttation. Usually it Occurs through stomata-like pores called hydathodes. Exudation may some times occur from […]

transpiration Practically most of the water absorbed by plants is ultimately lost into the atmosphere. Only a very small fraction of water (generally less than 5%) is utilized in plant […]

permeability A body is said to be permeable to a substance, if it allows the passage of the substance through it. This property is termed as permeability. The plant cell […]

Plasmolysis:-If a plant cell is placed in a highly concentrated sugar or salt solution (i.e., hypertonic solution), water from the cell sap flows out due to exosmosis through the plasma […]

Osmosis is the most important physical process that brings about the movement of water in living systems as well as in their environments. Definitions: A few definitions of osmosis are […]

Absorption of minerals are mainly absorbed by the roots which are in direct contact with the soil solution. Unlike the absorption of water, the minerals are absorbed over the entire […]

MODE OF NUTRITION Plants nutrition:-Like other living organisms, plants also require raw materials for building their structure and maintaining body functions. It is called nutrition. The various inorganic and organic […]