Quiz Chapter 12: CHE101-01-SP16.pdf - QuizChapter12:CHE10101SP16 QuizChapter12 Due May6at11:59pm Points 36 Questions 43 Available afterMar8at10am

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Unformatted text preview: 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Quiz Chapter 12 Due May 6 at 11:59pm Points 36 Questions 43 Available after Mar 8 at 10am Time Limit None Attempt History Attempt Time Score LATEST Attempt 1 46 minutes 20.5 out of 36 Score for this quiz: 20.5 out of 36 Submitted Apr 26 at 3:41pm This attempt took 46 minutes. Question 1 0.5 / 0.5 pts 1. Aspirin­like compounds were originally obtained from the bark of which tree? Cinnamon Correct! Willow Cinchona Elm Question 2 0 / 0.5 pts 2. The term natural products refers to compounds found in their natural state. You Answered Correct Answer compounds that can be easily derived from naturally occurring materials. compounds isolated from natural sources. compounds that are prepared without use of man­made chemicals. 1/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Question 3 1 / 1 pts 3. An antipyretic drug Correct! reduces fever. relieves pain. reduces inflammation. inhibits blood clotting. Question 4 0 / 1 pts 4. An analgesic drug reduces fever. Correct Answer You Answered relieves pain. reduces inflammation. inhibits blood clotting. Question 5 0 / 1 pts 5. Aspirin and other NSAIDs produce their effects by preventing You Answered formation of acetate. release of hydrochloric acid. breakdown of steroids. 2/16 4/26/2016 Correct Answer Quiz Chapter 12: CHE101­01­SP16 synthesis of prostaglandins. Question 6 1 / 1 pts 6. Which statement about prostaglandins is not true? Prostaglandins are found in both males and females. Prostaglandins are involved in many physiological functions. Prostaglandins are found in many different tissues. Correct! Prostaglandin concentrations increase in response to NSAIDs. Question 7 1 / 1 pts 7. Which is not a common side effect of aspirin? stomach irritation Correct! ringing in the ears. inhibition of blood clotting allergic reaction Question 8 0 / 1 pts 8. Which of aspirin's effects is not also produced by acetaminophen? You Answered analgesic antipyretic 3/16 4/26/2016 Correct Answer Quiz Chapter 12: CHE101­01­SP16 anti­inflammatory anticholinergic Question 9 1 / 1 pts 9. Acetaminophen has the advantage over aspirin of being less irritating to the stomach. What is the major disadvantage of acetaminophen? It is not as effective at relieving pain. It is more difficult to produce. It will not reduce fever. Correct! It is more likely to produce toxicity. Question 10 0.5 / 0.5 pts 10. A drug that inhibits an enzyme probably does so by Correct! blocking the enzyme's active site. altering the covalent structure of the enzyme. binding the enzyme's substrate. overstimulating the enzyme. Question 11 1 / 1 pts 11. What is the physiological role of histamine? It blocks the synthesis of prostaglandins. 4/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 It increases the tendency of the blood to clot. Correct! It initiates inflammation in response to allergens. It stimulates pain receptors in the brain. Question 12 0.5 / 0.5 pts 12. What is the approximate number of drug candidates screened for each FDA­approved drug? 200 500 900 Correct! 10000 Question 13 0.5 / 0.5 pts 13. How many years typically are required for a new drug candidate to go through testing and become an FDA­approved drug? 5 10 Correct! 15 20 Question 14 0 / 0.5 pts 14. The first step in rational drug design is 5/16 4/26/2016 You Answered Quiz Chapter 12: CHE101­01­SP16 finding molecules that work biologically. screening compounds for biological activity. Correct Answer finding enzymes or proteins related to diseases. testing compounds on volunteers. Question 15 0.5 / 0.5 pts 15. What is the approximate cost of bringing a drug from the candidate stage through the FDA approval process? $10 million $100 million Correct! $1 billion $5 billion Question 16 1 / 1 pts 16. A placebo is Correct! a compound that has no biological effect. a drug candidate in the testing stage. a compound that produces similar effects to a drug being tested. a compound that produces different effects from a drug being tested. Question 17 0.5 / 0.5 pts 6/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 17. In a double blind study, only the patient knows if they are in the test or control group. both the investigator and the patient know if the patient is in the test or control group. Correct! neither the investigator nor the patient knows if the patient is in the test or control group. only the investigator knows if the patient is in the test or control group. Question 18 0 / 1 pts 18. What is the difference between a generic drug and its brand­name counterpart? You Answered Correct Answer Potency Price Purity Safety Question 19 1 / 1 pts 19. Overuse of antibiotics has led to an increase in infectious disease. prophylactic immunity. an increase in viral disease. Correct! resistance in bacteria. Question 20 0 / 0.5 pts 7/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 20. What is the most commonly used class of anti­anxiety drugs? steroids You Answered Correct Answer SSRIs benzodiazepines NSAIDs Question 21 1 / 1 pts 21. The chemical structures of all steroids have what common feature? Correct! four fused rings a ketone group an alcohol group carbon and hydrogen as the only elements Question 22 1 / 1 pts 22. Corticosteroids are used to regulate fertility. Correct! reduce inflammation. increase muscle mass. regulate metabolism. 8/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Question 23 1 / 1 pts 23. Which class of steroids includes the drugs misused by some athletes? Correct! anabolic steroids corticosteroids glucocorticoids progestins Question 24 1 / 1 pts 24. Birth control pills contain steroids that mimic cortisol. Correct! progesterone. testosterone. cholesterol. Question 25 0 / 1 pts 25. Ethanol is commonly produced from You Answered combustion of corn. decomposition of plastic. Correct Answer fermentation of sugars by yeast. extraction from fruit. 9/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Question 26 1 / 1 pts 26. The percentage (by volume) of alcohol in beer is approximately 2% Correct! 5% 12% 40% Question 27 0 / 1 pts 27. The percentage (by volume) of alcohol in wine is approximately 5% Correct Answer 12% 20% You Answered 40% Question 28 0 / 1 pts 28. Which statement about the standard drink is true? The standard drink is based upon the weight of the drinker. The greater the proof, the larger the standard drink size. You Answered Correct Answer The volume of the standard drink is 12 oz. A standard drink of any beverage contains the same amount of alcohol. 10/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Question 29 0 / 1 pts 29. Which is the most widely consumed nonmedical drug in the United State? Correct Answer caffeine You Answered alcohol nicotine marijuana Question 30 1 / 1 pts 30. The principle active component of marijuana is morphine. nicotine. mescaline. Correct! tetrahydrocannibol. Question 31 0.5 / 0.5 pts 31. A serving of coffee or a soft drink contains approximately how much caffeine? 5 mg 20 mg Correct! 100 mg 500 mg 11/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Question 32 1 / 1 pts 32. Which is not an opioid? codeine morphine hydrocodone Correct! cocaine Question 33 0 / 1 pts 33. Which is not an effect of opioids? Correct Answer diarrhea cough suppression analgesia You Answered euphoria Question 34 0.5 / 0.5 pts 34. Cocaine habituation differs from morphine habituation in that The cocaine craving is more physical than psychological. Correct! The cocaine craving is more psychological than physical. Withdrawal from cocaine produces physical illness. 12/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 Withdrawal from morphine does not produce physical illness. Question 35 0.5 / 0.5 pts 35. Why do most cocaine users prefer free­base (crack) cocaine to cocaine hydrochloride? The free base is more water­soluble. Correct! The free base is readily vaporized for inhalation. The free base is less acidic. The free base has longer­lasting effects. Question 36 0 / 0.5 pts 36. What structural feature is common to all "hallucinogens" and amphetamines? You Answered phenylisopropylamine ester nitrogen with three bonds to carbon atoms Correct Answer phenylethylamine Question 37 0 / 0.5 pts 37. Cellular reproduction that produces identical cells is meiosis. Correct Answer mitosis. 13/16 4/26/2016 Quiz Chapter 12: CHE101­01­SP16 metaphase. You Answered cloning. Question 38 1 / 1 pts 38. Which statement about DNA is not true? Most cells in an organism contain identical DNA. DNA has three components, two of which are identical for every base pair. DNA is a polymer. Correct! The order of nucleotides in DNA is random. Question 39 1 / 1 pts 39. What structural feature of DNA enables its replication with very high accuracy? Correct! complementary hydrogen bonding weak covalent bonds salt bridges deoxyribose Question 40 0 / 1 pts 40. RNA differs from DNA in all except which of the following? Correct Answer An RNA molecule is an exact copy of a small part of a DNA molecule. 14/16 4/26/2016 You Answered Quiz Chapter 12: CHE101­01­SP16 RNA contains ribose, not deoxyribose. RNA contains uracil, not thymine. RNA molecules are much shorter than DNA. Question 41 0 / 1 pts 41. Which statement about RNA is true? Transfer RNA causes a newly­synthesized protein to separate from the ribosome. You Answered Correct Answer Messenger RNA contains anticodons, which specify amino acids for protein synthesis. Transfer RNA carries amino acids to the ribosome during protein synthesis. Messenger RNA is produced in the cytoplasm under the direction of DNA. Question 42 0 / 1 pts 42. Cloning is a way of changing certain genes in a fertilized egg. Correct Answer a way of producing a new organism with a set of genes identical to another organism. a type of in­vitro fertilization. You Answered a way of producing many identical organisms from a single fertilized egg. Question 43 0 / 1 pts 43. Which statement about recombinant DNA is not true? 15/16 4/26/2016 You Answered Correct Answer Quiz Chapter 12: CHE101­01­SP16 It is used to enable bacteria to produce human proteins. It is used to change the genetic makeup of a single person. It is used to make certain plants resistant to specific herbicides. It is DNA produced by combining a small piece of DNA from one organism with the DNA of another organism. Quiz Score: 20.5 out of 36 16/16 ...
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