1. What makes water a polar molecule? 2. Water molecule is made up of which type of chemical bonds? 3. Describe electronegativity. 4. Describe hydrogen bonds. 5. Differentiate between strong and weak electrolytes. Give an example of each. 6. Describe conjugate acid base pairs. Give an example. 7. Describe protonation and ionization for: a) an acid HA and b) base B. 8. What is the practical application of Henderson-Hasselbach equation? 9. What happens to the drug, when it is ionized, with respect to its absorption? 10. Which mineral if consumed in excess can damage the body? What is the mechanism of damage? 11. Which hormones are released to regulate the plasma calcium levels? Describe their mechanism of action. 12. Which minerals play an important role in providing strength to bones and teeth? 13. Describe Glycemic Index. Which Gl foods (high or low) are considered to be healthy? 14. Name the two essential fatty acids. 15. Describe the functions of LDL and HDL. Which of these two has higher cholesterol content and is considered to be "bad cholesterol"? 16. A weak acid is 50% in its ionized form at pH = 3. Calculate the Ka for this acid. 17. List the energy content of the three macronutrients and alcohol. 18. Which of the following fats do you need to avoid in your diet to reduce your risk of coronary heart disease: saturated, monounsaturated and polyunsaturated?