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Vocab chapter 4 for bio 1 period 2

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Term
Definition
ATP   molecule that transfers energy from the breakdown of food molecules to cell processes  
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ADP   lower-energy molecule that can be converted into ATP by the addition of a phosphate group  
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chemosynthesis   a process by which some organisms use chemical energy instead of light energy to make energy-storing carbon-based molecules  
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photosynthesis   process that captures energy from sunlight to make sugars that store chemical energy  
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chlorophyll   molecule in chloroplasts that absorbs some energy in visible light  
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thylakoids   stacks of coin-shaped, membrane-enclosed compartments  
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light-dependent reactions   capture energy from sunlight; sunlight is needed  
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light-independent reactions   use energy from the light-dependent reactions to make sugars; sunlight is not needed  
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cellular respiration   released chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present  
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aerobic   needs oxygen to take place  
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glycolysis   splits glucose into two three-carbon molecules and makes two molecules of ATP  
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anaerobic   does not need oxygen to take place  
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Krebs cycle   produces molecules that carry energy to the second part of cellular respiration  
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fermentation   does not make ATP, but it allows glycolysis to continue  
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lactic acid   C3H6O3 is what causes your muscles to "burn" during hard exercise  
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