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Energy in Cells

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Question
Answer
chemical reaction   when atoms or molecules are combined and new substances are produced and energy is released or absorbed in the process  
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chemical formula   the abbreviated way of writing the name of a substance (ex. water is H2O) to show what elements are in it and how many atoms of each  
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chemical energy   energy stored in bonds of atoms or molecules  
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chemical equation   the abbreviated way of writing a chemical reaction  
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products   the substances at the end of a chemical reaction (the right side of a chemical equation)  
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energy   the ability to do work, comes in different forms: heat, light, motion, chemical, etc  
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calorie   a measurement of energy in the form of heat given off (as when something is burned or when energy is released from food)  
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metabolism   all the chemical reactions that take place in a living organism  
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autotrophs   organisms that make food for themselves (ety: auto = self, troph = feeding), also called producers (adjective = autotrophic)  
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heterotrophs   organisms that must eat to get energy (ety: hetero = other, troph =feeding), also called consumers (adjective = heterotrophic)  
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photosynthesis   chemical reaction that takes place in the chloroplasts of producers to produce sugars as a food source (ety: photo = light, synthesis = making food from)  
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chlorophyll   the pigment in plants that gives them their green color and which is used in photosynthesis  
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respiration   chemical reaction that takes place in the mitochondria of both consumers and producers which releases the energy trapped in sugars (ety: “breathing” of cells as they take in oxygen)  
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->   the “yields” sign in a chemical equation...points to what new substances will be made in the reaction  
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∆   the “delta” sign in a chemical equation…means “change in” whatever is being talked about  
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chemical bonds   connection that holds atoms together to form molecules; the connection is made when atoms share or steal electrons  
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Created by: deirdrek827
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