Anatomy and Physiology: The Unity of Form and Function Chapter 2 Questions & Answers
Biochemistry - ANS-the study of the molecules that compose living organisms
Element - ANS-the simplest form of matter to have unique chemical properties
Trace Elements - ANS-An element indispensable for life but required in extremely minute amounts.
Radioisotopes - ANS-unstable isotopes
Radioactivity - ANS-the process of decay of Radioisotopes
Ionizing Radiation - ANS-Enough energy to dislodge electrons from atoms, forming ions; capable of
causing cancer (gamma, X-rays, UV)
Physical Half-Life - ANS-the time required for 50% of its atoms to decay to a more stable state
Ions - ANS-charged particles with unequal number of protons and electrons
Anion - ANS-A negatively charged ion
Cation - ANS-A positively charged ion
Electrolytes - ANS-substances that ionize in water and form solutions capable of conducting electricity
Free Radicals - ANS-chemical particles with an odd number of electrons