Q.

Which part of the cinchona yields a drug?

A. Pericarp
B. Bark
C. Endosperm
D. Leaf
Answer» B. Bark
Explanation: The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and anti-inflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plas- modium falciparum.
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