Atoms
Basic unit of matter
Element
A chemical substance with a given set of properties that cannot be broken down into substance with other properties
Macromolecule
Carbohydrates, lipids, protein, Nucleic acids, are called macromolecules because of large size
Matter
All material in the universe that has mass and occupies space
Molecules
two or more atoms joined by covalent bonds
Compound
A substance made up of atoms of two or more different elements
Hydrocarbons
Organic compounds composed of only carbon and hydrogen
Protein
Polymers that serve many functions in organisms
Nucleic acid
Are macromolecules that direct protein production
Carbohydrates
Are polymers that consist of atoms of carbon, hydrogen, and oxygen
Lipids
are a chemically diverse group of macromolecules that classify together because they do not dissolve in water
