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According to their origin, antibiotics can be classified into categories based on their
Who discovered penicillin?
What was the first member of the β-lactam class of antibiotics to be discovered?
What is the definition of an antibiotic?
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What modification of the definition of an antibiotic occurred with the advent of synthetic methods?
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Which of the following antibiotics inhibits protein synthesis by binding to the 30S ribosomal subunit?
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Which subunit of the bacterial ribosome is affected by tetracyclines?
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Which antibiotics affect the 50S ribosomal subunit?
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Which of the following antibiotics inhibits protein synthesis by binding to the 30S ribosomal subunit and crossing the outer bacterial membrane through porin channels?
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Which phase of translation in the bacterial ribosome involves the binding of the ribosome to the mRNA and the start codon?
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Study Notes
Antibiotics Classification
- Antibiotics can be classified into categories based on their origin.
Discovery of Penicillin
- Penicillin was discovered by Alexander Fleming.
β-Lactam Class of Antibiotics
- Penicillin was the first member of the β-lactam class of antibiotics to be discovered.
Definition of Antibiotics
- Antibiotics are substances that inhibit the growth of or kill microorganisms.
Modification of Antibiotic Definition
- With the advent of synthetic methods, the definition of antibiotics was modified to include synthetic substances that inhibit the growth of or kill microorganisms.
Antibiotics Inhibiting Protein Synthesis
- Tetracyclines inhibit protein synthesis by binding to the 30S ribosomal subunit.
- Streptomycin inhibits protein synthesis by binding to the 30S ribosomal subunit and crossing the outer bacterial membrane through porin channels.
Ribosomal Subunit Affected by Antibiotics
- Tetracyclines affect the 30S ribosomal subunit.
- Macrolides, Chloramphenicol, and Lincosamides affect the 50S ribosomal subunit.
Translation Phase in Bacterial Ribosome
- The initiation phase of translation involves the binding of the ribosome to the mRNA and the start codon.
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Description
Test your knowledge on antibiotics and chemotherapy with this quiz! Explore the different classifications of antibiotics based on their origin, chemical structure, action on microbes, effect on microbes, and mode of action. Sharpen your understanding of these essential topics in microbiology.
