1: Cell Theory: The Three Principles | 1. All organisms are composed of one or more cells. 2. The cell is the basic unit of life. 3. New cells arise only from cells that already exist. | Cell Theory: The theory that cells form the fundamental, structural and functional units of all living organisms.
2: Scientists | Theodore Schwann | Matthias Schlieden | Robert Hooke | Rudolf Virchow
3: Theodore Schwann found that plants and animals were made up of cells and that the cells were their own living organism. Matthias Schlieden found that the nucleus and cell development were related. He also found that plant cells work two lives: one being it's own and one helping the plant. Robert Hooke originated the term cell by observing a tree and naming the holes cellulae. Rudolf Virchow found that all cells originate from an already existing cell. He found that cells reproduce by division.
4: Prokaryotic | Prokaryotes tend to be smaller in size with no nuclear membrane or nucleoli. it's chromosome arrangement in a single circular chromosome with no histones. It usually has a cell wall that is very chemically complex with no cytoskeleton.
5: Eukaryotic | Eukaryotes are larger in size with a true nucleus. it's chromosome arrangement is multiple linear chromosomes with histones. If it has a cell wall then it is chemically simple with a cytoskeleton.
6: Plant Cells | Plant cells are different from animal cells. The are shaped rectangularly with a cell wall that surrounds the cell membrane. Chloroplast allows plant cells to make their own food. It has one large vacuole that takes up 90% of the cells total volume. They usually do not have lysosomes or flagella.
7: Animal Cells | Animal cells have cilia that pushes mucus out of the lungs of the animal. They are round and only have a cell membrane surrounding it. Animal cells do not have chloroplast. They have multiple. small vacuole. Animal cells rely on the animal to give it food and trusts the organelles to use that energy to help it function.
8: Cell Structures | 1. Centrioles - Cylinder shaped organelles made of nine tube and helps with cell division and the creation of the cytoskeleton. | 2. Chloroplasts - Found only in plant cells and is green with chlorophyll where photosynthesis happens.
9: 4. Endoplasmic Reticulum - Both smooth and rough. The rough has ribosomes that produce protein. It is attached to the nucleus and goes through cytoplasm. Transports things through out the cell. | 3. Cytoskeleton - Made of micro tubules that help support the cell and helps move materials inside and out of the cell.
10: Loving the Vegas Sun! | 5. Golgi Apparatus - Collects protein together. Has many layers and is found near the nucleus. | 6. Lysosomes - Digests all the proteins, carbs an lipids in a cell. Shape changes depending on the process it's in. the cell will break down if a lysosome explodes.
11: March 2009 | 7. Mitochondria - The second largest organelle that is double layered and controls the amount of materials in a cell. | 8. Ribosomes - Produces proteins for the cell.
12: 9. Vacuoles - Membrane sacs that remove water and waste. | 10. Cell Wall - Mostly found in plant cells. Surrounds the plasma membrane.
14: 3.11.09 | Cell Membrane - a semipermeable membrane that surrounds the cytoplasm of a cell.
15: Cell Homeostasis - When everything in a cell functions correctly and has equilibrium. | All parts of the cell work to maintain homeostasis but the cell membrane works the hardest because it has to shield the rest of the cell from the outside which could disrupt it.
17: We had good luck on saturday!
20: Jeremy living it up! Vegas trip 2009
22: Cheers! 3.11.09
23: Keep the dice rolling!