Biology
Cell-The Unit of Life
Cytology: It is the branch of biology that comprises the study of cell structure and function.
* Cell is the structural and functional unit of all living beings.
* There are two types of cells .They are plant cell and animal cell.
Characteristic features of Plant Cell
* Single large central vacuole is present.
*Cell wall present.
*Lysosomes present in less number.
* Single large central vacuole is present.
*There is no contractile vacuole.
*Spindle formed during cell division is anastral.
*Chromosomes are larger in size.
*Plant cells are generally well over 100 micrometer long.
*Mitochondria is generally spherical or oval in shape.
*Plastids are present, except fungi.
*Centrosome is usually absent from higher plant cells, except lower motile cells.
*Nucleus usually lies near periphery due to vacuole.
Other Important Oneliners-
*Max Shultze proposed protoplasm theory.
*All living beings are formed of cells, according to Lamarck
* It is N. Grew, who initiated cell concept
*Corti was the first to point out living substance is filled inside the cell.
It was called ‘Sarcode’ by Dujardin.
* It was Sachs, who proposed organismic theory.