Question

Which of the following antibiotics is active against fungus?

• A. Streptomycin
• B. Polyenes
• C. Tetracycline
• D. Neomycin

Answer 1

The correct option is B Polyenes

Polyenes work by destroying the cell membrane. It can bind to the sterols causing a hole in the membrane. This causes a hole in the cell thereby leaking the cell contents and death of the fungal cell.

Streptomycin is effective against tuberculosis, a bacterial disease.

Tetracycline is effective against a variety of bacterial infections such as gonorrhoea, urinary tract etc.

Neomycin is an antibiotic against many Gram positive and Gram negative bacteria.

Thus, the correct answer is option B.