6. Explain how antibiotics inhibit the growth of bacteria and use this explanati

Question

6. Explain how antibiotics inhibit the growth of bacteria and use this explanation to justify your choice to answer the following question: Which of the following statements is NOT correct for antibiotics? Explain your answer a. The most effective antibiotics target the unique bacterial plasma membrane. b. Penicillin inhibits transpeptidases enzymes which are responsible for the NAM and NAG cross-linking in the peptidoglycan bacterial cell wall. c. Antibiotic targets the synthesis of unique bacterial structures such as the cell wall. d. Chloramphenicol and Erythromycin are antibiotics that bind to prokaryotic ribosomes suppressing protein synthesis. e. Bacterial antibiotic-resistance genes are often located on small circular DNA units, called plasmids, which can be transferred during conjugation to other bacteria.

Explanation / Answer

Answer

a) the most effective antibiotics target unique bacterial plasma membrane

Explanation : the plasma membrane of both bacteria and human have similar composition i.e made up similar phospholipids and proteins.

Antibiotics inhibit the growth by following mechanisms

1) protein synthesis inhibition by binding to Ribosome or RNA

2)By affecting directly DNA

3)by affecting metabolism

4) by cell wall synthesis inhibition

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