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phenolic compound that create flavors and smells in plants. have antioxidant properties and play a key role in pigmentation
large polymeric phenolic compound that typically act as a deterrent in plants due to bitter taste or toxic effects, can inhibit digestive enzymes in animals, used in tanning process
large phenolic polymers found in plant cell walls that strengthen plant cells and enable them to better withstand a harsh environment
group of molecules that contain nitrogen and have a cyclic ring like structures, include caffeine, nicotine, and morphine, can be bitter or toxic
molecules synthesized from five carbon isoprene units, responsible for odors and pigmentation, ex: carotenoids, cinnamon, spices
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