The production of beta-lactamases in bacteria is responsible for which of the following?

• A. Synthesis of exotoxins
• B. Increased bacterial motility
• C. Enhanced biofilm formation
• D. Resistance to beta-lactam antibiotics

Answer: (D)

Verified step by step guidance

1. Understand the role of beta-lactamases: These are enzymes produced by certain bacteria that can break down beta-lactam antibiotics, such as penicillins and cephalosporins.
2. Recall the mechanism of beta-lactam antibiotics: They work by inhibiting bacterial cell wall synthesis, specifically targeting the beta-lactam ring structure in these antibiotics.
3. Recognize that beta-lactamases hydrolyze the beta-lactam ring, rendering the antibiotic ineffective and allowing the bacteria to survive despite the presence of the drug.
4. Compare the options given: synthesis of exotoxins, increased bacterial motility, enhanced biofilm formation, and resistance to beta-lactam antibiotics.
5. Conclude that the production of beta-lactamases is directly linked to resistance to beta-lactam antibiotics, as it neutralizes the antibiotic's effect.