CELL INTRODUCTION : A cell is a basic , living structure and function unit of body enclosed by a membrane. there are about 200 different types of cells in our body. PARTS OF A CELLS. 01.Plasma membrane. If forms outer flexible surface of the cells that separates its internal environment from the external environment. 02. Cytoplasm: It consists of all cellular contents between the plasma membrane and the nucleus. (a) Cytosol: It is the fluid portion of cytoplasm, contains wate, dissolved solutes and suspended particle. (b) Organelles: They are surrounded by cytosol. Each types of organelles has a characteristic shape and specific functions. 03. Nucleus: The. Largest organelle contains most of cellular DNA. A single molecules of DNA is associated with several proteins to form chromosome which contains thousands of hereditary...