Final answer:
Sulfa drugs inhibit folic acid synthesis in bacteria, causing bacterial death by disrupting essential biochemical processes.
Explanation:
Answer:
Sulfa drugs work by competitively inhibiting the synthesis of folic acid in bacteria through structural similarity to PABA. This inhibits the production of essential biochemical compounds like amino acids and nucleotides, leading to bacterial death.
When a cell is treated with sulfa drugs, it dies because it cannot make folic acid due to the competitive inhibition caused by the drug, affecting processes essential for cell survival. The drug deceives bacteria by mimicking a component necessary for their growth but rendering it nonfunctional, ultimately leading to cell death.
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