CHEM 120 Week 8 Exam 3 (Units 5, 6, and 7)

Multiple Choice questions: Q 1-40. Highlight or mark the correct answer. (2 point each) 1. The following is a polymer. 2. The following is a naturally occurring polymer. 3. The following is true for Addition polymers. 4. The following is true for condensation polymers. 5. The following is always a reactant in hydrolysis reaction in a cell. 6. Hydrocarbons are made of and 7. As you increase the length of hydrocarbon chain, the molecules becomes more . 8. Ionizing radiation 9. “Free radicals disrupt cellular processes.” This statement is 10. Half-life is defined as 11. “Radiation is used as diagnostic and a therapeutic tool in medicine.” This statement is 12. Energy is defined as 13. The SI unit of energy is 14. Exothermic reactions 15. Reaction of acid with a base results in product formation with increase in temperature. It is an example of 16. “The first law of thermodynamics is also a law of conservation of energy.” This statement is 17. An apple hanging on a branch has 18. Falling water from a water fall has 19. The entropy in nature is 20. When Carbon-14 undergoes alfa decay, the product is 21. When P-32 undergoes beta decay, the product is 22. The following is true for gamma decay. 23. A sum of ALL reactions in a cell is called 24. Synthetic reactions in the cell are called 25. Degradative reactions in the cell are called 26. Carbohydrates are made of 27. Proteins are made of 28. Fats are made of 29. is a polysaccharide 30. are the catalysts of the cell. 31. Lipids are . 32. Unsaturated fats contain . 33. Animal fats are ; while plant oils contain fats. 34. The following is not a component of DNA. 35. The following describes a difference between DNA and RNA. 36. Match the structural formula with name of the following compounds 36. CH3CH2CH2CH2NH2 37. CH3OH 38. CH3CH2OCH3 39. CH3CH2COOCH3 40. CH3CH2F