Cuppy Studies

Osmosis Osmosis is the movement of solvent from a region of its higher concentration to a region of its lower concentration when the two are separated by a semipermeable …

Imbibition : Plant-Water Relations Imbibition is the absorption of water by the solid particles of an adsorbant without forming a solution . The particles which absorb water are the …

 Plasmolysis Plasmolysis is the shrinkage of the protoplast of a cell from its cell wall under the influence of a hypertonic solution. If a plant is placed in highly …

 Role of k+ in stomatal movement: Imamura and M. Fujino (1959) found a direct correlation between stomatal movement and K+ ion concentration of guard cells. Fujino proposed that stomatal …

Mechanism of opening and closing of stomata  Stomatal transpiration occurs when stomata are fully open.  The opening and closing of stomata is a direct response to increase or decrease …

Transpiration  Transpiration is the process of loss of water in the form of vapours from the aerial portions of the  plant.  Less than 5% of total water absorbed by …

Ascent of sap Ascent of sap is the upper movement of sap through stem . In other words, the process of translocation of sap from the roots to the …

Ascent of Sap:Physical theories According to the proponents of physical theories of ascent of sap living cells do not take part in the translocation of water. Rather it is …

Multiple Choice Questions (MCQ) and Answers on Water Bodies and Ocean Currents Question 1: Kuroshio is a warm ocean current which runs from a) Philippines to Japan b) Indonesia …

Multiple Choice Questions (MCQ) and Answers on Natural Vegetation and Wildlife Question 1: Over 90 percent of the world biomass is in a) tropical rain forests b) freshwater wetlands …