You are a Guest | Sign In Register as: Student Plus Student
Add to Scribble Pad


Asked by kokwu | Apr 17, 2008 | AS Level > Biology > Advice
kokwu asks:

i pick up this question from past paper on June 2005, Paper 1, No35. here is the question:

Some antibiotics are used in animal feed to reduce disease. what explains why these antibiotics should not be used in the treatment of human disease?
A.Humans may be allergic to these antibiotics
B.Human cells may stop responding to these antibiotics
C.pathogenic bacteria may develop resistance to these antibiotics
D.Useful gut bacteria may be killed by these antibiotics

Answer: C

according to the choices given, the answers are quite similar. What is the best way to choose the answer, and why the best answer is C?
thank you.

etutor answers:
B is incorrect - antibiotics are aimed at bacterial cells, not human cells. A and D may be true but there is no evidence for it and these could be true of ANY antibiotic. C is therefore the only answer left.

0 student responses

Login or Register to post a response.

Student Profile

Last online Sat Apr 26 2008 6:37 PM GMT
Member since Apr 17, 2008
Profile type:

Popular Tags

No tags found.

Sponsored Links