Question

Which one of the following is not true about antibiotics?

विकल्प

• The first antibiotic was discovered by Alexander Flemming.

• The term ‘antibiotic' was coined by S. Waksman.

• Some people can be allergic to a particular antibiotic.

• Each antibiotic is effective only against one particular kind of germ.

Answer 1

Each antibiotic is effective only against one particular kind of germ.

Explanation:

The Statement Each antibiotic is effective only against one particular kind of germ is not true about antibiotics. Antibiotics are classified into two kinds based on how they work. A broad-spectrum antibiotic is one that is effective against a broad range of disease-causing bacteria, whereas a narrow-spectrum antibiotic is only effective against specific families of bacteria.