79. which graph represent ts the growth of bacteria while taking doses of antibi

Question

79. which graph represent ts the growth of bacteria while taking doses of antibiotics? a. b. C. d. 80. If an antiseptic claims to be 90% effective, how many doses will be needed to get rid of the bacteria completely? a. 1 b. 2 C. d. 4 or more 81. True or False. One method for how anfibiotics ka bocteria is through disruption of the protein synthesis process. a. True b. False 82. Which is a more difficult type of bacteria to treat and kill with antibiotics? a. Community-acquired MRSA b. Hospita-acquired MRSA c. Staph d. ECMO 83. Given your knowledge of bacterial reproduction, if starting with one bacterium, how many would you have after 2 hours? a. 8 b. 16 ?. 32 d. 64 84. On a petri dish, the area around an antibiotic disc with no bacteria growth is known as the a. Zone of inhibition b. Zone of growth C. Bacterial lawn d. Resistance zone 85. Which of the choices below represents recommendations by the CDC for antibiotic use? a. Take all prescribed medications b. Do not keep and take antibiotics for a different infection c. Only take antibiotics for bacterial infections d. All are correct

Explanation / Answer

79) The answer will be option c.

Explanation: Bacteria which are resistant to antibiotics are able to grow in presence of antibiotics. Thus their population will increase even in the presence of antibiotics. Graph a, b & d all represent the decrease bacterial population. Only graph c represents the increase of population. Thus the correct answer will be option c.

81) The answer will be true (Option a).

Explanation: The statement is true. For example tetracycline worked by inhibiting protein synthesis.

82) The answer will be hospital-acquired MRSA (Option b).

Explanation: MRSA is Methicillin-resistant Staphylococcus aureus which is more dangerous than normal Staphylococcus aureus. Hospital-acquired MRSA are more dangerous as it is resistant to more antibiotics than community-acquired MRSA.

84) The answer will be zone of inhibition (Option a).

Explanation: The area around the antibiotic disc where no bacterial growth is observed is called zone of inhibition.

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