Answer: penicillin.
- A chloramphenicol
- B penicillin
- C tetracycline
- D streptomycin
Correct answer: B. penicillin
Explanation: Penicillin blocks the enzymes that build the bacterial cell wall, causing the cell to burst.
The hydrophobic hydrocarbon tail of each soap/detergent molecule dissolves into an oily dirt droplet, while the hydrophilic (ionic) head stays in the surrounding water - trapping the grease inside a micelle that rinses away with water.
Concept context
Drugs and how they interact with biological targets, chemicals in food, and cleansing agents (soaps and detergents) - chemistry applied directly to daily life and healthcare.