How bacteria develop resistance to antibiotics.

Explanation

Resistance to Antibiotics. Some pathogenic bacteria develop resistance to antibiotics.
The reasons are-(i) The pathogens modify their cell wall, membrane so that the antibiotic fails to penetrate the bacterial cell. (ii) The pathogen alters the antibiotic.s target due to spontaneous mutation. Due to such alteration in the metabolism of pathogen the antibiotic fails to recognise its point of impact. (iii) Bacteria develop such enzymes which modify the antibiotic. (iv) Development of copious mucilage.