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Antibiotics Classification Quiz

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

On what basis are antibiotics categorized into natural, synthetic, and semisynthetic?

a)

Mode of action

b)

Range of activity

c)

Origin

d)

Route of administration

2.

Which of the following is a natural source of antibiotics?

a)

Viruses

b)

Bacteria, fungi, actinomycetes

c)

Protozoa

d)

Algae

3.

Broad-spectrum antibiotics are effective against:

a)

Only Gram-positive bacteria

b)

Only Gram-negative bacteria

c)

A wide range of microorganisms

d)

Only fungi

4.

Narrow-spectrum antibiotics primarily act against:

a)

Both Gram-positive and Gram-negative bacteria

b)

A specific group of microorganisms

c)

Fungi

d)

Viruses

5.

Which classification involves cidal and static antibiotics?

a)

Origin

b)

Chemical structure

c)

Effects of activity

d)

Route of administration

6.

Cidal antibiotics are those that:

a)

Inhibit bacterial growth

b)

Kill bacteria

c)

Reduce virulence

d)

Enhance immunity

7.

Antibiotics administered by injection belong to which route?

a)

Oral

b)

Parenteral

c)

Topical

d)

Sublingual

8.

The classification of antibiotics based on chemical structure includes:

a)

Natural and synthetic antibiotics

b)

Broad- and narrow-spectrum antibiotics

c)

Beta-lactams, macrolides, aminoglycosides, etc.

d)

Cidal and static antibiotics

9.

Topical antibiotics are mainly used for:

a)

Respiratory infections

b)

Gastrointestinal infections

c)

Skin and surface infections

d)

Systemic infections

10.

Semisynthetic antibiotics are prepared by:

a)

Complete chemical synthesis

b)

Direct extraction from organisms

c)

Chemical modification of natural antibiotics

d)

Using plant extracts only

11.

Penicillins, cephalosporins, and carbapenems belong to which class of antibiotics?

a)

Macrolides

b)

β-Lactam antibiotics

c)

Aminoglycosides

d)

Tetracyclines

12.

Which of the following is a macrolide antibiotic?

a)

Gentamycin

b)

Chloramphenicol

c)

Azithromycin

d)

Vancomycin

13.

Doxycycline belongs to which antibiotic class?

a)

Tetracyclines

b)

Macrolides

c)

Glycopeptides

d)

β-Lactams

14.

Chloramphenicol is classified under:

a)

Macrolide antibiotics

b)

Nitrobenzene derivatives

c)

Lincosamide antibiotics

d)

Aminoglycosides

15.

Streptomycin and amikacin belong to which class?

a)

Aminoglycosides

b)

Macrolides

c)

Glycopeptide antibiotics

d)

Tetracyclines

16.

Which antibiotic is a glycopeptide?

a)

Neomycin

b)

Vancomycin

c)

Clindamycin

d)

Azithromycin

17.

Lincosamide antibiotics include which of the following?

a)

Erythromycin and clarithromycin

b)

Lincomycin and clindamycin

c)

Amikacin and streptomycin

d)

Penicillin and monobactams

18.

Which of the following is not a β-lactam antibiotic?

a)

Monobactams

b)

Cephalosporins

c)

Carbapenems

d)

Tetracycline

19.

Which group contains antibiotics mainly ending with “-mycin”?

a)

Glycopeptides

b)

Aminoglycosides

c)

β-Lactams

d)

Nitrobenzene derivatives

20.

Erythromycin belongs to which subclass?

a)

Tetracyclines

b)

Aminoglycosides

c)

Macrolide antibiotics

d)

Lincosamides

21.

Which of the following is a β-lactam antibiotic?

a)

Clindamycin

b)

Carbapenem

c)

Vancomycin

d)

Doxycycline

22.

Azithromycin belongs to which class?

a)

Macrolides

b)

Lincosamides

c)

Aminoglycosides

d)

Glycopeptides

23.

Oxytetracycline is a part of which antibiotic group?

a)

Macrolides

b)

Tetracyclines

c)

Nitrobenzene derivatives

d)

β-Lactams

24.

Which antibiotic is a nitrobenzene derivative?

a)

Chloramphenicol

b)

Gentamycin

c)

Penicillin

d)

Vancomycin

25.

Which pair includes only aminoglycoside antibiotics?

a)

Streptomycin, Gentamycin

b)

Lincomycin, Clindamycin

c)

Penicillin, Cephalexin

d)

Erythromycin, Azithromycin

26.

Which is not an aminoglycoside?

a)

Amikacin

b)

Neomycin

c)

Streptomycin

d)

Clarithromycin

27.

Vancomycin is used primarily against:

a)

Gram-positive bacteria

b)

Gram-negative bacteria

c)

Viruses

d)

Parasites

28.

Which drug is a common member of macrolide antibiotics?

a)

Amikacin

b)

Erythromycin

c)

Chloramphenicol

d)

Penicillin

29.

Cephalosporins belong to which antibiotic class?

a)

Glycopeptides

b)

Macrolides

c)

β-Lactams

d)

Nitrobenzene derivatives

30.

Lincomycin is an example of:

a)

Tetracycline

b)

Macrolide

c)

Lincosamide

d)

Aminoglycoside

31.

Beta-lactam antibiotics primarily act by inhibiting the synthesis of:

a)

DNA

b)

Cell membrane

c)

Cell wall

d)

Protein

32.

Which antibiotic group targets the bacterial cell membrane?

a)

Polymyxin

b)

Sulfa drugs

c)

Tetracycline

d)

Quinolones

33.

Streptomycin acts by inhibiting:

a)

Nucleic acid synthesis

b)

Cell wall formation

c)

Protein synthesis

d)

Metabolite production

34.

Nalidixic acid is classified as a:

a)

Protein synthesis inhibitor

b)

Cell membrane inhibitor

c)

DNA synthesis inhibitor

d)

RNA synthesis inhibitor

35.

Rifamycin inhibits:

a)

DNA replication

b)

RNA synthesis

c)

Cell membrane permeability

d)

Folic acid synthesis

36.

Trimethoprim belongs to which category?

a)

Cell wall inhibitors

b)

Protein synthesis inhibitors

c)

Nucleic acid inhibitors

d)

Enzyme/metabolite inhibitors

37.

Which of the following is not a protein synthesis inhibitor?

a)

Tetracycline

b)

Chloramphenicol

c)

Streptomycin

d)

Ceftriaxone

38.

Imidazole acts by inhibiting:

a)

Cell wall

b)

Cell membrane

c)

Protein synthesis

d)

RNA synthesis

39.

Which antibiotic group disrupts folic acid metabolism?

a)

Sulfonamides

b)

Quinolones

c)

β-Lactams

d)

Macrolides

40.

Carbapenems act by interfering with:

a)

Cell membrane

b)

DNA gyrase

c)

Peptidoglycan synthesis

d)

RNA polymerase

41.

Which of the following inhibits DNA gyrase?

a)

Rifamycin

b)

Nalidixic acid

c)

Chloramphenicol

d)

Polymyxin

42.

The antibiotic that inhibits RNA polymerase is:

a)

Streptomycin

b)

Rifamycin

c)

Doxycycline

d)

Trimethoprim

43.

Polymyxin is effective mainly against:

a)

Gram-positive bacteria

b)

Viruses

c)

Fungi

d)

Gram-negative bacteria

44.

Which drug inhibits dihydrofolate reductase?

a)

Sulfonamides

b)

Rifampicin

c)

Trimethoprim

d)

Cephalexin

45.

Chloramphenicol inhibits protein synthesis by acting on:

a)

30S ribosomal subunit

b)

50S ribosomal subunit

c)

Cell membrane phospholipids

d)

RNA polymerase

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