Which of the following statement (s) are true?
I. Antibiotics can kill bacteria, but disinfectants do not
II. Disinfectants have better bactericidal efficiency than antibiotics
III. Antibiotics are of microbial origin, but disinfectant are chemical compounds
IV. Antibiotics can be injected into the patients, whereas disinfectants are not.

Options

A. Only I
B. Only II
C. Only III
D. II, III and IV

Answer

D

Explanation

Antibioticx are the agents used by living beings to kill or inhibit the growth of microorganisms in them. They are of microbial origin and can be injected into the patients. While, distinfectants are the substances that are applied to the non-livings objects to destroyed microorganisms living on the objects.
The do not neccessarily kill the microorganisms but are more potent bacterial having more efficifiency than antibiotics. They are chemical compounds that cannot be injected into the living being or partents