Enzymes

2. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
4. the strength and vitality required for sustained physical or mental activity.
7. a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
8. an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons.
10. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

1. a compound consisting of two or more amino acids linked in a chain, the carboxyl group of each acid being joined to the amino group of the next by a bond of the type -OC-NH-.
3. are present in all living organisms and include many essential biological compounds such as enzymes, hormones, and antibodies.
5. the chemical processes that occur within a living organism in order to maintain life.
6. an RNA molecule capable of acting as an enzyme.
9. is a term used to describe a class of macro nutrients used in metabolism called triglycerides.