2013 · Q106
106. Consider the following statements regarding antibiotics:
- 1They are used to destroy disease-causing bacteria.
- 2They can be applied to the skin, swallowed or injected to fight micro-organisms inside the body.
- 3They are effective against disease-causing viruses.
- 4The first antibiotic to be discovered was tetracycline.
Which of the statements given above is/are correct ?
General KnowledgeBiology
- A1 and 2 only
- B1, 2 and 4
- C2, 3 and 4
- D1 only
Explanation
Antibiotics destroy bacteria and can be applied/swallowed/injected; they don't work on viruses and penicillin (not tetracycline) was first; the official key marks A.