Write a note on the structure of cell?

Cell is the fundamental unit of a living organism.

The cell is enclosed by an outer Plasma membrane which is selectively permeable. Plant cells have an additional cell wall located outside the plasma membrane. The cell is filled with a translucent viscous substance  called the cytoplasm in which are embedded the organelles. The control centre of the cell is the nucleus, it contains all the information necessary for the cell to function and to reproduce further cells of the next generation.

Surrounding the nucleus is the Endoplasmic reticulum (ER) which may have the ribosomes which are the site of protein synthesis. Ribosomes, a granular structures, also found in cytoplasm.
The power house of the cell is the mitochondria which helps in releasing energy by the oxidation of food in cell.
There are flat membranous secretory structures in the cell the Golgi bodies. In plant cells there is an additional structure the chloroplast which is the site for photosynthesis.
Cells also contain lysosomes which are also called suicide bags. They digest and remove the unwanted debris of the cell. Centriole helps in cell division. Cytoplasm also contains vacuoles filled with cell sap.
In plant cells vacuole are present which act as storage sacs. Vacuoles are large in plant cells nd small or non existeant in animal cells.