BIO11 Lecture : Gen bio 2
Document Summary
Cells are the basic units of all living organisms. All in all, the human body has over 200 different types of cells and they all come in all shapes and sizes. ( for example: red blood cells, these cells are biconcave disks. This unique shape allows them to carry oxygen for distribution throughout the body. ) Robert hooke looked at thinly sliced cork with a simple microscope. Which he called " cellulae", the latin word for small rooms. Hence the origin of the biological term cell. In the seventeenth century, the dutch shopkeeper anton van leeuwenhoek constructed lenses that provided clarity and magnification not previously possible. He observed very small "animalcules" from scrapings of tartar from his own teeth, as well as protozoans from a variety of water samples. Thus, earning him the title of "father of microbiology". In the early nineteenth century, the german botanist matthias schleiden, proposed that the nucleus might have something to do with cell development.
