Class 12 Biology · Chapter 11 · Test 1
Pharmacology
48 MCQs
49 questions · 35 min · 49 marks
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Sample questions
The first 5 of 49. Try each one, then tap to see the answer.
Question 1
The first step in drugs discovery is ________.
- ALead optimization
- BPreclinical Testing
- CTarget identification
- DHit identification
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Answer: C
Drug discovery begins with identifying a disease-related molecule such as a protein or enzyme as the target.
Question 2
Testing in a larger group of about 100–300 patients to test the effectiveness and side effects of drugs indicates ________.
- APhase 1
- BPhase 2
- CPhase 3
- DPhase 4
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Answer: B
Phase 2 tests effectiveness and side effects in 100–300 patients.
Question 3
Penicillin is highly effective against ________.
- AGram-positive bacteria
- BGram-negative bacteria
- CStreptomyces
- DPenicillium notatum
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Answer: A
Penicillin is highly effective against Gram-positive bacteria including streptococcal and staphylococcal infections.
Question 4
The ________ antibiotic is derived from soil-dwelling bacteria of the genus Streptomyces.
- APenicillin
- BFluoroquinolones
- CSulfonamides
- DTetracycline
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Answer: D
Tetracycline is derived from soil-dwelling Streptomyces bacteria.
Question 5
The ________ drugs are synthetic compounds derived from sulfanilamide.
- APenicillin
- BFluoroquinolones
- CSulfonamides
- DTetracycline
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Answer: C
Sulfonamides are synthetic compounds derived from sulfanilamide discovered by Gerhard Domagk.
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