Question

. A narrow spectrum antibiotic is active against

(a) gram positive or gram negative bacteria

(b) gram negative bacteria only

(c) single organism or one disease

(d) both gram positive and gram negative bacteria​

Answer 1

Answer:

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Explanation:

Drugs are classified based on their effects on gram-positive and gram-negative bacteria.

So, the drugs which are active against gram-negative bacteria are classified as narrow spectrum antibiotics and the drugs active against both gram positive and gram negative bacteria are called broad spectrum antibiotics.

Answer 2

Answer:

*BROAD SPECTRUM ANTIBIOTIC: against a wide range of gram positive AND gram negative bacteria.

ex: ampicillin, amoxicillin (both are synthetic penicillin), chloramphenicol, vancomycin etc

*NARROW SPECTRUM ANTIBIOTICS:

against gram positive OR gram negative bacteria

ex: penicillin G

*LIMITED SPECTRUM ANTIBIOTICS: against a single organism or disease

Explanation:

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