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Chemistry of Life

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Question
Answer
What is studying the chemical aspects of life?   Biochemisty  
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What are pure substances composed of one of more that 100 types of atoms found in nature?   Elements  
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what are the four elements that make up 96% of the human body?   Oxygen, Carbon, Hydrogen, and Nitrogen  
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Atoms usually unite with each other to form larger chemical units called?   Molecules  
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What are substances whose molecules have more than one element in them?   Compounds  
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What are atoms with a positive and negative charge?   Electrolytes  
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What is the solvent in which most other compounds or solutes are dissolved?   Water  
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When water is the solvent for a mixture(blend of molecules)the mixture is called a what?   An aqueous solution.  
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What name literally means Carbon(C) and Water(H2O)?   Carbohydrate  
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The basic unit of carbohydrate molecules is called a what?   Monosaccharide  
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What are fats and oils called?   Lipids  
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Very large molecules composed of basic units of amino acids are what?   Proteins  
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What are chemical catalysts meaning they help a chemical reaction called?   Enzymes  
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