Life Sciences
GATE XL topic:chemotherapy-antibiotics PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–15 of 15. Imported answers require independent review unless marked reviewed.
Question 1
Open questionXL-SMCQ1 markNeeds review
Chloramphenicol and tetracycline are broad spectrum antibiotics which inhibit bacterial growth by targeting __________.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 11
Open questionXL-SMCQ2 marksNeeds review
Folic acid synthesis in bacteria is competitively inhibited by sulfonamides. Which of the following essential components is replaced by sulfonamides during the process of folic acid synthesis?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 12
Open questionXL-SMCQ2 marksNeeds review
Match the antimicrobial agents in group I with their category/mode of action in group II.
Group I: (i) Fluoroquinolones; (ii) Amphotericin B; (iii) Tetracycline; (iv) Amoxicillin.
Group II: (p) beta lactam antimicrobial; (q) inhibition of protein synthesis; (r) inhibition of nucleic acid synthesis; (s) antifungal agent
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 63
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Which one of the following antibiotics is NOT produced by Streptomyces sp.?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 75
Open questionXL-SMCQ2 marksNeeds review
The minimal inhibitory concentration (MIC) of an antibiotic X against Clostridium tetani, Staphylococcus sp., Shigella sp. and Streptococcus sp. is 25, 15, 2 and 1 μg/ml, respectively. Assuming that the bioavailable concentration of X in an animal model is 20 μg/ml, which one of these bacteria may develop resistance against X in the animal model?
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