Course Content
TRANSPORT IN PLANTS AND ANIMALS
0/68
EXCRETION AND HOMEOSTASIS
0/59
Biology Form 2
About Lesson

Economic Importance of Plant Nitrogenous Excretory Waste Products

Waste

Function

Tannins

Treatment of leather.

Caffeine

Mild stimulant

Quinine

Treatment of malaria

Cocaine

Local anaesthesia

Nicotine

Manufacture of insecticides and drugs

Rubber

Manufacture of shoes, tyres and chewing gum.

Papain

Meat tenderizer

Colchicine

Cancer therapy

Heroine

Narcotic drug

Morphine

Painkiller

Strychnine

Pesticide, particularly to kill rats

Gum (Arabica)

Used in food processing.

Used in printing industry