AntibioticsToo Muchof a GoodThing?Biology Lecture Launchersfrom Benjamin Cummings and Discovery Channel SchoolPresentation...
Antibiotics           Your doctor           prescribes an           antibiotic and        specifically cautions       you ...
Antibiotics© 2009 Pearson Education, Inc.
AntibioticsCheckpoint      What is an antibiotic?        a. It is a toxin used by bacteria to kill molds.        b. It is ...
AntibioticsCheckpoint        What is an antibiotic?                   b. It is a drug that can kill infectious bacteria.© ...
AntibioticsCheckpoint        Human white blood cells ________.          a. carry oxygen and carbon dioxide to the         ...
AntibioticsCheckpoint        Human white blood cells ________.                   c. serve as one of the bodys natural line...
AntibioticsCheckpoint           About half of the antibiotics produced today           __________.             a. end up i...
AntibioticsCheckpoint            About half of the antibiotics produced today            __________.              a. end u...
AntibioticsCheckpoint            How do bacteria populations become drug            resistant?               a. Antibiotic...
AntibioticsCheckpoint            How do bacteria populations become drug            resistant?                    d. All o...
AntibioticsCheckpoint            Which of these is not an effective strategy to            prevent antibiotic resistance? ...
AntibioticsCheckpoint            Which of these is not an effective strategy to            prevent antibiotic resistance? ...
AntibioticsSummary     • We didnt have antibiotics before the 1940s.     • Alexander Fleming helped to develop the first  ...
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Bio101 antibiotics

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Bio101 antibiotics

  1. 1. AntibioticsToo Muchof a GoodThing?Biology Lecture Launchersfrom Benjamin Cummings and Discovery Channel SchoolPresentation prepared by Andrew Stull© 2009 Pearson Education, Inc.
  2. 2. Antibiotics Your doctor prescribes an antibiotic and specifically cautions you to take every pill. Why?© 2009 Pearson Education, Inc.
  3. 3. Antibiotics© 2009 Pearson Education, Inc.
  4. 4. AntibioticsCheckpoint What is an antibiotic? a. It is a toxin used by bacteria to kill molds. b. It is a drug that can kill infectious bacteria. c. It is a chemical produced by the body to defend itself against viruses. d. Its an area with conditions that dont support life. e. None of the above are correct.© 2009 Pearson Education, Inc.
  5. 5. AntibioticsCheckpoint What is an antibiotic? b. It is a drug that can kill infectious bacteria.© 2009 Pearson Education, Inc.
  6. 6. AntibioticsCheckpoint Human white blood cells ________. a. carry oxygen and carbon dioxide to the lungs b. store antibiotics for release at sites of infection c. serve as one of the bodys natural lines of defense against microbial invaders d. gather and eliminate antibiotics from the site of an infection e. All of these are correct.© 2009 Pearson Education, Inc.
  7. 7. AntibioticsCheckpoint Human white blood cells ________. c. serve as one of the bodys natural lines of defense against microbial invaders© 2009 Pearson Education, Inc.
  8. 8. AntibioticsCheckpoint About half of the antibiotics produced today __________. a. end up in animal feed b. are used by field hospitals in war zones c. are shipped to third-world countries d. become useless due to developing resistance by bacterial populations e. are stored for later use© 2009 Pearson Education, Inc.
  9. 9. AntibioticsCheckpoint About half of the antibiotics produced today __________. a. end up in animal feed© 2009 Pearson Education, Inc.
  10. 10. AntibioticsCheckpoint How do bacteria populations become drug resistant? a. Antibiotics remove drug-susceptible individuals but leave those that are drug- resistant. b. Natural selection drives bacterial populations to change. c. Some individuals are genetically resistant to antibiotics. d. All of these are correct.© 2009 Pearson Education, Inc.
  11. 11. AntibioticsCheckpoint How do bacteria populations become drug resistant? d. All of these are correct.© 2009 Pearson Education, Inc.
  12. 12. AntibioticsCheckpoint Which of these is not an effective strategy to prevent antibiotic resistance? a. Dont stockpile antibiotics. b. Dont demand antibiotics from your physician. c. Use antibiotics only as long as symptoms remain. d. Use antibiotics as prescribed. e. Dont share antibiotics with others.© 2009 Pearson Education, Inc.
  13. 13. AntibioticsCheckpoint Which of these is not an effective strategy to prevent antibiotic resistance? c. Use antibiotics only as long as symptoms remain.© 2009 Pearson Education, Inc.
  14. 14. AntibioticsSummary • We didnt have antibiotics before the 1940s. • Alexander Fleming helped to develop the first antibiotic from a mold. • Antibiotics work to kill infecting bacteria. • Natural variations exist within bacterial populations that make some bacteria resistant to antibiotics. • Abuse of antibiotics promotes the development of antibiotic-resistant bacteria.© 2009 Pearson Education, Inc.

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