match the terms in column B with their descriptions in column A. _____1. Most abundant anion; necessary in gastric juice _____2. Component of chlorophyll; plays assisting role in metabolic functions _____3. Component of bones and teeth; essential for muscle contraction _____4. Controls and regulates bodily fluid particularly the osmotic balance in the kidneys _____5. Controls and regulates bodily fluids A. Ca B. Cl C. K D. Na E. Mg