Answer: Tranquilizers reduce anxiety and mental tension by affecting brain neurotransmission, while analgesics mainly reduce the perception of pain.
- A Tranquilizers function by raising body temperature, while analgesics work by lowering blood pressure in most observed cases under typical physiological conditions
- B Tranquilizers act mainly on peripheral nerves outside the brain, while analgesics act mainly within the spinal cord according to standard texts
- C Tranquilizers are used mainly to treat infections of the nervous system, while analgesics treat viral infections in general clinical practice
- D Tranquilizers reduce anxiety and mental tension by affecting brain neurotransmission, while analgesics mainly reduce the perception of pain
Correct answer: D. Tranquilizers reduce anxiety and mental tension by affecting brain neurotransmission, while analgesics mainly reduce the perception of pain
Explanation: Tranquilizers act on the central nervous system to relieve anxiety and stress, whereas analgesics primarily reduce pain sensation; both act on the CNS but target different effects.
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.