Question

what are antibiotics.give some examples 8th class biology science
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Answer 1

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Antibiotics are the chemical substances produces from microorganisms like bacteria, and are used as a medicine to kill or to stop the growth of the disease-causing microorganisms. Antibiotics should be taken only on the advice of a qualifier doctor.

e.g. Penicillin, Quinolones

Answer 2

Answer:

Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word antibiotic means “against life.” Any drug that kills germs in your body is technically an antibiotic.Antibiotics are used to treat or prevent some types of bacterial infection. They work by killing bacteria or preventing them from reproducing and spreading. Antibiotics aren't effective against viral infections, such as the common cold, flu, most coughs and sore throats.

Explanation:

The main types of antibiotics include:

• 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.
• Penicillins.
• Cephalosporin.
• Macrolides.
• Fluoroquinolones.
• Sulfonamides.
• Tetracyclines.
• Aminoglycosides.