Cell Structure and Function

• A cell is a basic unit of structure and function in living organisms
• Cell theory states that all living things are made up of cells, cells come from pre-existing cells, and the functions of an organism can be traced to its cells
• Cytology is the study of cell
• The first cytologist was Robert Hooke who discovered cell in the year 1665
• Animal cell

  
• The living material between the nucleus and the cell membrane is called the cytoplasm
• Cells can exist as an independent or free living organism,as a colony,as a filament,and as a specialised cell or part of a multicellular organism
• The level of organisation of living things are cell,organ, tissue and system
• Mitochondria is known as the power house of the cell because it is the site of ATP generation
• Ribosomes are responsible for protein synthesis