CLASS 11 - CH-8 CELL - PROKARYOTICCELL - NCERT PG. 89-90 - ZOOLOGY - BY DIKSHA MA'AM - NEET 

A cell is the basic structural and functional unit of all living organisms. It is enclosed by a plasma membrane, which separates the cell's internal environment from its external surroundings. Within the cell, various organelles perform specific functions, such as energy production, protein synthesis, and waste management. Cells can be categorized into two main types: prokaryotic cells, which lack a nucleus and membrane-bound organelles, and eukaryotic cells, which have a nucleus and membrane-bound organelles. Cells are the building blocks of life and are essential for the survival and functioning of all living organisms.