NEET BIOLOGY

Detailed explanation-1: -Antimicrobial resistance happens when germs like bacteria or fungi no longer respond to the drugs designed to kill them. That means these germs are not killed and continue to grow. It does not mean our body is resistant to antibiotics or antifungals. Antimicrobial resistance is a naturally occurring process.

Detailed explanation-2: -Through mutation and selection, bacteria can develop defense mechanisms against antibiotics. For example, some bacteria have developed biochemical “pumps” that can remove an antibiotic before it reaches its target, while others have evolved to produce enzymes to inactivate the antibiotic.

Detailed explanation-3: -Print. About Antimicrobial Resistance. Antimicrobial resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Resistant infections can be difficult, and sometimes impossible, to treat.

Detailed explanation-4: -Penicillins-for example, phenoxymethylpenicillin, flucloxacillin and amoxicillin. Cephalosporins-for example, cefaclor, cefadroxil and cefalexin. Tetracyclines-for example, tetracycline, doxycycline and lymecycline. Aminoglycosides-for example, gentamicin and tobramycin.

Detailed explanation-5: -Antimicrobial resistance mechanisms fall into four main categories: (1) limiting uptake of a drug; (2) modifying a drug target; (3) inactivating a drug; (4) active drug efflux.