Beta-Lactam Antibiotics Quiz

What is the main structural feature of beta-lactam antibiotics?

• Beta-lactam ring

• Benzene ring

• Pyridine ring

• Sulfhydryl group

What is the primary mechanism of action (MOA) of beta-lactam antibiotics?

• Inhibit cell wall synthesis by bacteria

• Inhibit protein synthesis

• Disrupt DNA replication

• Inhibit folic acid synthesis

Why are beta-lactam antibiotics considered a good selective medication for humans?

• Humans have no cell wall (no peptidoglycan)

• They are only effective against viruses

• They target human ribosomes

• They are metabolized by the liver

Which of the following is NOT a typical characteristic of beta-lactam antibiotics?

• They are all bactericidal

• They are all toxic

• They are relatively inexpensive

• Most are soluble in water

Which subgroup of penicillin includes Pen G and Pen V?

• Narrow Spectrum

• Extended Spectrum

• Carbapenems

• Monobactams

Which of the following is an example of a carbapenem antibiotic?

• Imipenem

• Cefazolin

• Aztreonam

• Amoxicillin

Which beta-lactam antibiotic is a monobactam?

• Aztreonam

• Cefuroxime

• Ampicillin

• Clavulanic acid

Which of the following is a combination beta-lactam antibiotic?

• Amoxicillin/clavulanic acid

• Ceftriaxone

• Oxacillin

• Aztreonam

What is the main effect of penicillin on bacteria?

• Weakens cell wall, destroys bacteria by osmotic lysis

• Inhibits protein synthesis

• Disrupts DNA replication

• Inhibits folic acid synthesis

Which condition is penicillin most effective against?

• Bacteria that rapidly multiply

• Viruses

• Fungi

• Parasites