Chapter 2 Biol 235 Athabasca University Study Guide Questions And Correct Answers

What is an atom {Ans: the smallest unit of matter that retains the properties and characteristics of the elements}What is the metabolism? {Ans: a broad term that includes all chemical reactions that occur within the body}What is an Ion? {Ans: an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.}What is kinetic energy? {Ans: Energy that belongs to matter that is moving}What is a cation {Ans: A positively charged ion}What is a free radical {Ans: An atom or group of atoms that has an electron in the outside shell which is without a pair.}