FC: Cell Theory By: Hogan Campbell & Martin Kipp
1: Three Principles of Cell Theory | !1. All organisms are composed of one or more cells. 2. The cell is the basic unit of life. 3. New cells only arise from cells that already exist.
2: Scientist Robert Hooke- was a scientist who looked at cork through a compound microscope what he saw reminded him of cells that monks lived in giving them the name cells, although he only saw cell walls. Matthias Schleiden- looked at plant cells under a microscope and discovered that plant parts were made up of cells. Theodor Schwann- viewed animal parts under a microscope and discovered that animals were also made up of cells which made him come up with the theory that all living things are made up of cells. Rudolf Virchow- stated that all living cells come only from one living cell his major contribution was the idea that pathologic reactions of cells
3: Does not have a nucleus Does not have a membrane bound organelle Are only unicellular Cells are small DNA is circular | Has a nucleus It is membrane bound Are both multicellular and unicellular Has larger cells DNA is linear | Prokaryotic vs. Eukaryotic
4: Have cilia Have chloroplasts because they make their own food Have one large valcuole taking up 90% of the cell volume Have centrioles present in only one | Rarely have cilia Don't have chloroplasts Have one or more small valcuoles Have centrioles present in everything | Plant Cells vs. Animal Cells
5: 1.Nucleus- a Eukaryotic cell a membrane bound organelle that contains the cells DNA and has a role in processes such as growth, metabolism, and reproduction. 2.Ribosomes- a cell organelle composed of RNA and protein the site of protein synthesis. 3.Mitochondria- a eukaryotic cell the cell organelle that is surrounded by two membranes and is the site of cellular respiration which reduces ATP 4.Central Vacuole- a large cavity or sac that is found in plant cells or protozoans and also contains partially digested food and air. 5.Golgi Apparatus- cell organelle that helps make a packaged materials to be transported out of the cell. 6.Lysosome- a cell organelle that contains digestive enzymes. 7.Flagella- a long hairlike structure that grows out of a cell and enables the cell to move. 8.Chloroplast- an organelle that is found in plant and algae cells where photosynthesis occurs. 9.Cell Wall- give shape to the plant and also keeps toxic substances out and the right amount of water in the inside. 10.Cytoskeleton- it provides protection from normal wear and tear, and often enables cellular motion. | 10 Cell Structures
6: Cell Membrane Cells share common structural features, including an outer boundary that is called the Cell Membrane. It encloses the cell and separates the inside of the cell from its surroundings.
7: Homeostasis Cell Membrane controls what goes in and out of the cell. it regulates and maintains the cell. Maintaining the environment is what homeostasis does.