Biochemistry worksheet Name__________________________Class_________ 1. Name the elements found in all living things. 2. Why do some athletes eat high-carbohydrate diets the day before competition? 3. List the subunits that make up the following: a. cellulose b. fats d. enzyme e. proteins f. nucleic acids g. starch h. polypeptides i. glycogen 4. A substance that forms hydrogen ions when dissolved in water is called a(n)_________________. 5. An ionic bond forms when 6. Why is water a good solvent? 7. An atom with unequal numbers of electrons and protons is call a(n)_______________. 8. How are proteins, polypeptides and amino acids related to one another? 9. What are three important functions of lipids in living organisms? 10. How is the chemical makeup of a lipid different from a carbohydrate? 11. Why are lipid deposits important as energy reserves? 12.Whether an atom will react with another atom is primarily determined by what?