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Chapter 2

Chemistry of Life

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



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