Explain how antibiotics target bacterial processes and why they do not treat viral replication.
Tę umiejętność sprawdza 9 zadań wzorowanych na arkuszach IB z lat 2022–2025.
A drug inhibits bacterial cell-wall synthesis but does not stop a virus multiplying inside a human cell. Why? A. The viral life cycle lacks the bacterial process targeted by the drug B. Antibiotics act only on multicellular parasites C. All viruses possess…
Suggest how antibiotic treatment can disrupt a stable climax community of gut bacteria.
Suggest two factors that could affect antibiotic action on this community.
(i) Outline one reason the antibiotic does not eliminate the animal-infecting viruses. (ii) Explain why it does not directly damage the small invertebrates in the same way.
Identify the strain with the lowest antibiotic resistance.
Distinguish between this method and an antibiotic-disc inhibition-zone test, referring to antibiotic placement and measurement of its effect.
Identify the strain with the lowest antibiotic resistance.
Distinguish between this method and an antibiotic-disc inhibition-zone test, referring to antibiotic placement and measurement of its effect.
Which processes can make pathogen control more difficult? I. Selection of antibiotic-resistant bacteria. II. Genetic changes producing new pathogen variants. III. Antibiotics acting as an effective treatment against every virus. A. I and II B. II and III C. I…
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