3 show that these bacteria a are pathogenic b

This preview shows page 13 - 14 out of 14 pages.

The data in Table 20.3 show that these bacteria A) are pathogenic. B) developed resistance to antibiotics. C) were killed by 0.125 g/ml of antibiotic X. D) were killed by 0.5 g/ml of antibiotic X. E) were resistant to 1.0 g/ml at the start of the experiment. 38) Which of the following statements about drugs that competitively inhibit DNA polymerase or RNA polymerase is FALSE? A) They can potentially cause mutations. B) They are used against viral infections. C) They can affect host cell DNA synthesis. D) They cause cellular plasmolysis. E) They interfere with protein synthesis. 39) Figure 20.3 The substrate for transpeptidase used to synthesize peptidoglycan is shown in Figure 20.3. Which of the drugs shown would inhibit peptidoglycan synthesis? A) a B) b C) c D) d E) e 40) Figure 20.4 The structures of the influenza drug Tamiflu and sialic acid, the substrate for influenza viruss neuramidase, are shown in Figure 20.4. What is the method of action of Tamiflu? A) inhibits cell wall synthesis B) inhibits plasma membrane synthesis C) inhibits synthesis of neuramidase D) competitive inhibition E) prevents synthesis of virus spikes 41) Which of the following does NOT affect eukaryotic cells? A) antiprotozoan drugs B) antihelminthic drugs C) antifungal drugs D) nucleotide analogs E) semisynthetic penicillins 42) Mebendazole is used to treat cestode infections. It interferes with microtubule formation; therefore, it would NOT affect A) bacteria. B) fungi. C) helminths. D) human cells. E) protozoa. 43) Which of the following antibiotics causes misreading of mRNA? A) aminoglycoside changes shape of 30S units B) chloramphenicol inhibits peptide bonds at 50S subunit C)oxazolidinone prevents formation of 70S ribosome D) streptogamin prevents release of peptide from 70S ribosome E) tetracyclines bind with 30S subunit 44) The antibiotic actinomycin D binds between adjacent G-C pairs, thus interfering with
Image of page 13

Subscribe to view the full document.

A) transcription . B) translation. C) cellular respiration. D) plasma membrane function. E) peptide bond formation. 45) Use of antibiotics in animal feed leads to antibiotic-resistant bacteria because A) bacteria from other animals replace those killed by the antibiotics. B) the few surviving bacteria that are affected by the antibiotics develop immunity to the antibiotics, which they pass on to their progeny. C) the antibiotics cause new mutations to occur in the surviving bacteria, which results in resistance to antibiotics. D) the antibiotics kill susceptible bacteria, but the few that are naturally resistant live and reproduce, and their progeny repopulate the host animal. E) the antibiotics persist in soil and water.
Image of page 14
  • Winter '18
  • Mok T. Chong, PharmD, PhD, MBA
  • Bacteria, tuberculosis C

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern