organic chemistry vocab quiz Ch 6

The building blocks of matter.

• atoms

• elements

• enzyme

• protein

Central, positive core of every atom.

• nucleus

• neutron

• polymer

• ion

A pure substance that is composed of a single kind of atom that can not be broken down, by either physical or chemical means.

• Atom

• Element

• Molecule

• solute

Pure substance that forms when two or more atoms join in a fixed ration

• molecule

• compound

• mixture

• product

A compound in which the atoms are held together by a covalent bond.

• Product

• Mixture

• macromolecule

• Molecule

The attractive force between a negative region on one molecule and the positive region on a neighboring molecule.

• Polar

• van der waals forces

• ionic bond

• covalent bond

Any substance that releases hydrogen ions (H⁺) when dissolved in water.

• solution

• base

• acid

• solute

The minimum amount of energy required to start a chemical reaction.

• active site

• catalyst

• activation energy

• enzyme

The carbon compounds that are held together by peptide bonds to form proteins.

• amino acids

• nucleotides

• polymer

• lipid

a substance that can react with an acid or a base to maintain a specific pH.

• acid

• base

• buffer

• solvent