STAAR Vocab: Biochemistry

the spatial arrangement of atoms in a molecule and the

chemical bonds that hold the atoms together

• atomic model

• chemical structure

• molecular formula

bond formed by the sharing of valence electrons between atoms

• covalent bond

• ionic bond

• hydrogen bond

bond formed when one or more electrons are transferred from one atom to another

• hydrogen bond

• polar bond

• ionic bond

a molecule in which the charges are unevenly distributed

creating a positive charge on one side and a negative

charge on the other; for example a water molecule

• hydrogen bond

• polar bond

• covalent bond

the attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge

• hydrogen bond

• ionic bond

• polar bond

smallest unit of most compounds

• compound

• molecule

• monomer

substance formed by the chemical combination of two or more elements in definite proportions

• compound

• molecule

• atom

any molecule that is produced by a living organism; examples are carbohydrates, proteins, lipids, and nucleic acids

• monomer

• biomolecule

• atom

small unit that can join together with other small units to form a polymer

• compound

• polymer

• monomer

large compound formed from combinations of many monomers

• polymer

• monomer

• organelles