Water passes through the plasma membrane both inwardly as well as outwardly. Net movement. Occurs along its concentration gradient, from the side of pure water or dilute solution (high water concentration) to cell side of concentrated solution (low water concentration). A cell placed in dilute solutRead more
Water passes through the plasma membrane both inwardly as well as outwardly. Net movement. Occurs along its concentration gradient, from the side of pure water or dilute solution (high water concentration) to cell side of concentrated solution (low water concentration). A cell placed in dilute solution (hypotonic solution) will show endosmosis because the external solution has higher concentration of water’ A cell placed in hypertonic solution (i.e., concentrated solution) will show exosmosis because cell sap has higher concentration of water.
What is crenation?
It is a wrinkled appearance of animal cells (e.g., human erythrocytes) placed in a hypertonic solution.
It is a wrinkled appearance of animal cells (e.g., human erythrocytes) placed in a hypertonic solution.
See lessHypertonic solution causes plasmolysis where the protoplast shrinks and withdraws from the cell wall at most places. What is present between the shrunken protoplast and cell wall?
Hyper tonic solution.
Hyper tonic solution.
See lessPlasma mebrane is permeable to water. How does a cell show endosmosis or exosmosis?
Water passes through the plasma membrane both inwardly as well as outwardly. Net movement. Occurs along its concentration gradient, from the side of pure water or dilute solution (high water concentration) to cell side of concentrated solution (low water concentration). A cell placed in dilute solutRead more
Water passes through the plasma membrane both inwardly as well as outwardly. Net movement. Occurs along its concentration gradient, from the side of pure water or dilute solution (high water concentration) to cell side of concentrated solution (low water concentration). A cell placed in dilute solution (hypotonic solution) will show endosmosis because the external solution has higher concentration of water’ A cell placed in hypertonic solution (i.e., concentrated solution) will show exosmosis because cell sap has higher concentration of water.
See lessA drop of ink is placed gently at the base of a beaker containing water by means of a dropper. What will happen?
The ink slowly moves in all directions and ultimately makes the water uniformly coloured. This happens due to diffusion.
The ink slowly moves in all directions and ultimately makes the water uniformly coloured. This happens due to diffusion.
See lessWhich of the following states is not rich in minerals?
(a) Haryana
(a) Haryana
See less