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| smallest unit of matter that can perform all life funtion |
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| robert hook after little rooms monks lived in |
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| controls what enters and leaves the cell |
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| whats cell membrane made of |
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| phospholipids cholesterol and proteins |
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| everything must be near membrane for communication |
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| ratio of surface area to volume more stuff in it bigger it will be |
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| combination of 2 fatty acids and a phosphate group, |
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| attracted to water (phosphate group) |
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| long chains of amino acids |
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| have to have right charge ions enter or leave |
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| match shape in a substance causes chemical change |
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| identify cell type and if it belongs |
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| have nucleus and membrane bound organelles |
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| do not have nucleus and membrane bound organneles (bacteria) |
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| control what enter and leave the cells |
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| all living matter inside the cell |
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| do not have membrane, make proteins found in both types of cells |
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| release energy stored in food (metabolism) |
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| make more of their own kind (mitosis) |
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| cells maintain homeostasis |
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| maintain relatively constant internal environment |
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| powerhouse of the cell releases energy stored in food. changes stored energy into usable energy |
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| make food using light, water, and co2 |
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| transports proteins made by attached ribosomes and makes lipids the sends both to golgi apparatus |
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| process, package, and deliver protein in a lipid vesicle to cell membrane to be released |
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| made of cellulose gives cell rigidity |
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stores container in plants
central vacuole helps give plants structure |
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| pigment uses light energy to make chemical energy |
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| how to cells receive information |
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| through cell membrane using proteins |
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| closed right ions they open |
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| shape only accept certain molecules which causes chemical change in cell |
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| identify cell used by immune system to identify cell type and whether or not it belongs |
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| mixing two or more substances by random motion, substances go from areas of high concentration to areas of low concentration |
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| water molecules diffuse through cell membrane (passive transport) |
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| water pressure created when water diffuses into a cell (passive transport) |
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| cells choose what to transport moving substances through membranes protein channels |
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| some channels allow particular molecules to go in either direction with the ions |
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| requires energy to move molecules from areas of low concentration to high concentration |
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| uses energy to move 3 sodium ions out of cell and 2 pottassium into cell, causes slight negative charge (nerve cells) |
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| pumps protons across cell membrane to change stored energy into usable energy |
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| too big to go through cell membrane or through channels |
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| moving large particles into cells |
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| moving large dissolved particles into the cell ( to drink) |
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| moving large particles out of cells |
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