Which of the following is NOT a waste product of plants?
- Tannins
- Oxygen
- Carbondioxide
-
Sap
- Alkaloids
The correct answer is: D
Explanation
Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis. Also, Extracts from plants contains toxic alkaloids.