Cells
作者：Braydon Stelzer
1. Prokaryotic
1.1. Unicellular (only one cell)
1.1.1. Bacteria
2. Cell theroy
2.1. In 1665 Robert Hooke viewed a slice of cork under a microscope. Hooke viewed the small individual units and named them cells because of their box-like shape.
2.2. In 1838 Matthias Schleiden was a Botanist from Germany. Schleiden studied living plant specimens under a microscope and discovered that they are all made up of cells.
2.3. In 1839 Theodore Schwann studied animal tissue under a microscope and noticed many types of animal cells. Schwann was friends with Schleiden and they often compared notes. Schwann found that animal cells were similar to plant cells and that they both contained a nucleus.
2.4. In 1858 Rudolf Virchow was scientist from Poland that proposed cells divide. Virchow was influenced by Schleiden and Schwann. Virchow determined that all cells come from preexisting cells.
3. Eukaryotic
3.1. Plant cells
3.1.1. More geometrically shaped
3.1.1.1. Cell wall ridged outer layer of a plant cell.
3.1.1.1.1. Large central vacuole stores water.
3.2. One or more cells
3.3. Animal cells
3.3.1. More organic shaped.
3.3.1.1. Lysosomes breaks down worn-out or damaged organelles.
3.4. Both
3.4.1. Nucleus the brain of the cell.
3.4.1.1. Cytoplasm
3.4.1.1.1. Cytoskeleton protein network
3.4.2. Lipids store energy
3.4.2.1. Proteins build up and repair body structure and to regulate body processes.
3.4.2.1.1. Carb. source of energy
3.4.3. Mitochondria the power house of the cell, releases energy stored in food.
3.4.3.1. Ribosomes make proteins.
3.4.3.1.1. ER the highway of the cell, transports proteins.