atoms |
the simplest form of
matter |
| isotopes |
variant forms of elements which differ in the number of
neutrons |
| redox reaction |
an oxidation-reduction reaction: when pairs
of molecules transfer electrons. |
| reducing agent |
any molecule or atom that donate electrons |
| oxidizing agent |
any molecule or atom that receives
electrons |
| pH |
hydrogen ion concentration |
| organic compounds |
are made of carbon and hydrogen (and other)
atoms. They constitute the most prominent molecules in cells. |
| inorganic compounds |
are composed of combinations of elements other than carbon
and hydrogen. |
| carbohydrates |
are compounds composed of C, H and O |
| lipids |
organic compounds not soluble in water |
| nucleotides |
complex molecules containing a nitrogen
base, a sugar and a phosphate. |
| ATP |
adenosine triphosphate. A nucleotide
involved in the transfer and storage of energy in cells |
