Question
Prontosil effectively acted on streptococci when the drug was split by enzymes to produce A. penicillin. B sulfanilamide. C. erythromycin. D. Salvarsan. Penicillin was discovered by A. Koch. B. Hooke. C Fleming. D. Ehrlich. One of the earliest antimicrobials isolated from a bacterium was A. penicillin. B. ampicillin. C. Salvarsan. D. streptomycin. The toxicity of a given drug is expressed as the A. selective toxicity. B. biocide index. C. biostatic index. D. therapeutic index. A drug with a high therapeutic index is A. more toxic to the patient. B. less toxic to the patient. C. has no effect on the patient. D. has no effect on the pathogen. Antibiotics that affect various strains of Gram-positive bacteria and various strains of Gram-negative bacteria are called A. isolate usable. B. stress-induced. C. narrow spectrum. D. broad spectrum. Which of the following bacteria have an innate resistance to penicillin? A. S. aureus B. S. epidermidis C. M.
Explanation / Answer
Answer:
1. (B) Sulfanilamide
2. (C) Fleming
3. (D) Streptomycin
4.(D) therapeutic index
5. (B) less toxic to the patient.
6. (D) broad-spectrum
7. (D) Mycoplasma
Mycoplasma lacks cell wall, thus it remains uninhibited by penicillin.
