In this article we will discuss about:- 1. Meaning of Cell Wall 2. Functions of Cell Wall 3. Chemical Composition 4. Structure 5. Cell Coat. Meaning of Cell Wall: It is the outer rigid protective supportive and semi transparent covering of plant cells, fungi and some protists. Cell wall was first seen in cork cells by Hooke in 1665. Its [...]
In this article we will discuss about the Meaning and Importance of Plasmolysis. Meaning of Plasmolysis: Shrinkage of the protoplast of a cell from its cell wall under the influence of a hypertonic solution is called plasmolysis. Hypertonic solution causes exosmosis or withdrawal of water from cytoplasm and then the central vacuole of cell. The size of cytoplasm as well [...]
In this article we will discuss about:- 1. Meaning of Diffusion 2. Diffusion Pressure 3. Factors 4. Importance. Meaning of Diffusion: The tendency on the part of molecules, atoms, ions, etc., of gases, liquids and solids to get evenly distributed throughout the available space on account of their random kinetic motion is called diffusion. Random kinetic motion of particles is [...]