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Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare1 Mark
MCQ
Terramycin is obtained from:
  • A
    Streptomyces venezuelae
  • B
    Streptomyces aureofaciens
  • C
    Streptomyces rimosus
  • D
    Streptomyces griseus
✓

Answer

  1. Streptomyces rimosus

Explanation:

Terramycin is an antibiotic derived from Streptomyces rimosus, a species of actinomycete isolated from a soil sample. It is amphoteric and forms a hydrochloride and a sodium salt. Terramycin had a low degree of toxicity in animals and that the crystalline hydrochloride salt possessed a wide range of antibacterial activity against both Gram-positive and Gram-negative organisms.

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