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Cell Energy Vocab

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Term
Definition
ATP   adenosine triphosphate, an organic molecule that acts as the main energy source for cell processes; composed of a nitrogenous base, a sugar, and three phosphate groups  
Autotroph   an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms  
Cellular respiration   the process by which cells produce energy from carbohydrates; atmospheric oxygen combines with glucose to form water and carbon dioxide  
Chlorophyll   a green pigment that is present in most plant cells, that gives plants their characteristic green color, and that reacts with sunlight, carbon dioxide, and water to form carbohydrates  
Consumer   an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources  
Heterotroph   an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic materials  
Photosynthesis   the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce carbohydrates and oxygen  
Producer   an organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem  
Glucose   A six-carbon monosaccharide that serves as a building block for many polysaccharides and whose oxidation in cellular respiration is a major source of ATP for cells.  
Product   An ending material in a chemical reaction.  
Reactant   A starting material in a chemical reaction  
Law of Conservation of Mass and/or Energy   Mass cannot be created or destroyed. Energy cannot be created or destroyed  


   






 
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Created by: Christensent