Answer: proteins (enzymes or receptors).
- A complex carbohydrate chains
- B proteins (enzymes or receptors)
- C simple structural lipids
- D various inorganic minerals
Correct answer: B. proteins (enzymes or receptors)
Explanation: Most drugs act on proteins - either enzymes or cell-surface receptors - to alter a biological process.
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.