Cells and diffusion test review
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| prokaryotes | cells without a nucleus
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| eukaryotes | cells with a nucleus
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| cytoskeleton | protien structures taht hepl maintain the cell shape
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| cell theroy | 1. call cells come from pre existing cells 2. all cells are the baic form of life. 3. all living thigs are made of cells
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| nucleus | controlls the cell, contains DNA and chromosomes. usually round
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| nuclear membrane | regulates what goes in and out of the nucleus
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| nucleolus | produces RNA and ribosomes
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| ribosomes | produce protein
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| RER | looks like folded towels, transports and synthesis of important products
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| cytoplasm | 85% water, holdes all organells in the cell
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| vacuole | storage for plants, very large, also digest
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| cell membrance | water like refred to as the fluid mosaic modle
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| lysomes | digest food in the cell, and also a storage of food in an animal cell
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| mitochondria | power house of a cell, produces ATP
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| golgi apparatus | looks liek flattened pancakes, and it is the UPS of the cell and transport out of the cell
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| centriole | hepl in the reproduction of cells
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| cell wall | made of mostly cellulose, only found in plants
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| chloroplast | where photosynthesis occurs in a plant cell
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| exeptions to cell theory? | viruses- use a host cell to carry out life functions, 2. the first cell, 3 mitochondria and chloropast have their own DNA bein able to reproduce
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| what is diffusion | movement of a substance from a High to a Low concentration of area
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| what is the name of water diffusing? | Osmosis
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| active transport is? | the movement of liquid from a Low to a High area of concentration
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| another word for diffusion? | passive transport
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| what part of a lipid is hydrophilic? | head
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| what part of the lipid is hydrophobic | tail
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| when can a cell swell? | when water difuses into a cell
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| when can a cell shrink? | when the cell is placed in a hypertonic situation
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| cyclosis is? | the movement of chloropast around the cell
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| why must starch be broken down? | the starch cell is too large for cells to take in. first it must be broken into simple sugars like glucose so it may difuse into the cell
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| phagocytosis | when a cell eats another cell for nutriants
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| pinocytosis | when a cell squeezes a cell for its liquid
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| exocytosis | when a cell removes of waste by difusing with a vacuole
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