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RRB Junior Engineer / DMS / CMA 2019 · Question 47 of 3719

What are antibiotics?

Life Sciences - Health and Disease

  1. Aa. Drugs prepared from moulds and mould like organismsCorrect
  2. Bb. Special medicines used during surgical operations
  3. Cc. Sleeping pills
  4. Dd. Anaesthetic substances

Answer: A. a. Drugs prepared from moulds and mould like organisms

Explanation

Antibiotics are the drugs prepared from moulds and mould like organisms. • Antibiotics are the medicines which fight against the bacteria in our body. • Antibiotics either kill the bacteria or inhibit their multiplication or reproduction. • Some antibiotics are effective against protozoa also, but they are ineffective to viral infections. • Antibiotics are naturally obtained from bacteria or fungi (moulds are a type of fungi) or can be synthesized in labs. • Penicillin was the first antibiotic discovered by Alexnder Fleming in 1928, obtained from Penicillium Notatum (a type of fungus). But the use of antibiotics is subject to medical prescriptions, unnecessary, excess or incomplete dosage of antibiotics can cause complications. • Careless intake of antibiotics can make the body or bacteria antibiotic-resistant, and the antibiotics are no longer able to cure the infection. • Development of Multidrug-resistant Tuberculosis (MDR TB) and Extensively drugresistant TB (XDR TB) are an example of antibiotic resistance

Source: RRB JE 2019 CBT-1 (24-May-2019 Shift-2) — ixambee compilation with answer key and solutions · reliable-secondary

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