Process in which chemical bonds are broken and atoms form new bonds producing new substances; requires energy

compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body

large organic molecule held together by covalently bonded; four classes: proteins, nucleic acids, carbohydrates, and lipids

large molecule formed when many smaller molecules bond together with covalent bonds

compounds with the same simple formula but different three-dimensional structures resulting in different physical and chemical properties

macromolecule made mainly from carbon and hydrogen atoms; includes fats, oils, and waxes. Main energy storing molecule.

macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair and to make up enzymes. Subunit: Amino Acid

organic macromolecule made of nucleotides; stores hereditary information for cell function; DNA or RNA

protein that speeds up a chemical reaction; acts as a catalyst and lowers activation energy

one of the carbohydrates made up of long chains of simple sugars;include starch, cellulose, and glycogen

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