1. Carbohydrates normally function in animals as?
2. What is a fat or triglyceride composed of?
3. Which type of lipid is most important in biological membranes?
4. How many different amino acids exist?
5. Enzymes affect the reactions in living cells by changing the?
6. Which of the following statements about enzymes is NOT true?
a. Enzymes work best at a specified pH
b. All enzymes work inside cells.
c. Enzymes are proteins
d. Enzymes are biological catalysts.
7. What enzyme found in saliva breaks chemical bonds between the sugar monomers in starches?
8. How many electrons can a carbon atom share?
9. How many electrons can a nitrogen atom share?
10. How many electrons can a oxygen atom share?
11. An unsaturated lipid contains _.
12. Unlike carbohydrates and fats, proteins contain _.
13. What is the usual ending in the name of an enzyme?
14. What are the four groups of organic compounds found in living things?
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