FC: CELLS DIANA ORTIZ ASHLEY MURRAY
2: cell theory: | 1) all living things are composed of living thing 2) cells are the basic units of structure 3) cells only come from existing cells
3: contributions of four scientist | virchow suggehat all cells come from pre-existing cells Schwann and Schleiden suggested that cel | virchow suggested that all cells come from pre-existing cells Schwann and Schleiden suggested that cells are the basic unit of life Hooke looked at thin slices of cork through his microscope and discovered little "cells," which he named because he described the plant cells as resembling the cells where monks lived. He then developed this discovery into cell theory.
4: plant cells vs. animal cells | Cilia:very rare in plant cells shape:Round (irregular shape) in animal, Rectangular (fixed shape) in plant Chloroplast:Animal cells don't have chloroplasts, Plant cells have chloroplasts because they make their own food Vacuole:One or more small vacuoles in animal cells, One, large central vacuole taking up 90% of cell volume in plant cells Centrioles:Present in all animal cells, Only present in lower plant forms. Plastids:Absent in animal cells, present in plant cells. Cell wall:Absent in animal cells, present in plant cells Plasma Membrane:only cell membrane in animal cells, cell wall and a cell membrane in plant cells Lysosomes:Lysosomes occur in cytoplasm in an animal cell, Lysosomes usually not evident in plant cells.
5: 10 cell structures | Cell Wall is the tough, usually flexible but sometimes slightly rigid layer that surrounds a plant cell. Central Vacuole is found in plant cells. it can take up to 80% of the cell’s space. It is responsible for storing food, water, and waste. it also provides structure for the plant Centriole- helps to organize the assembly of micro tubing during cell division. rough er- protein and lipid synthesis Flagellum- a tail-like projection that protrudes from the cell body of certain prokaryotic aand eukaryotic cells. Golgi complex- processes and packages proteins after their synthesis and bfore they make their way to their destination lysosomes break down waste mterials and cellular debris. transport proteins serve as gateways for molecules. mitochondria- generate the cell’s energy
6: cell membrane | the cell membrane is a barrier separating the interior of the cell from the exterior.
7: homeostasis | homeostasis: The tendency of an organism or a cell to regulate its internal conditions, usually by a system of feedback controls, so as to stabilize health and functioning, regardless of the outside changing conditions.
8: prokaryotic vs. eukaryotic | eukaryotic and prokaryotic. While plants, animals, fungi, protozoans, etc. possess eukaryotic cells, prokaryotic cells are found in bacteria only. eukaryotic and prokaryotic. | eukaryotic cells are more complex then prokaryotic cells. eukaryotic cells are the most common kind of building block.
13: Everyone must take time to sit and watch the leaves turn.
14: Everyone must take time to sit and watch the leaves turn. ~Elizabeth Lawrence
22: Nature gives to every season, a beauty all its own. - Charles Dickens
25: Fall is here!