secondary_metabolites

secondary_metabolites - speeds up HR Secondary Metabolites...

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Secondary Metabolites: compounds produced by organism but not necessarily essential for growth & cell structure Phenolic Compounds Flavonoids: antioxidants with intense flavors and smells prevent formation of free radicals pigments: produce reds, purples, blues color in fruits e.g., vanilla extract broccoli and spinach have a lot Tannins : protection for plants because bitter or toxic Lignins plant cell walls large component of wood
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Secondary Metabolites: Alkaloids basic (high pH) molecules Bitter-tasting molecules for defense frequently strong odor ex: atropine, morphine, caffeine capsaicin – in chili peppers cause the burning sensation (also phenolic) birds don’t experience burning sensation and disperse seeds! deadly nightshade atropine from nightshade plant is potent / deadly toxin in humans atropine
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Unformatted text preview: speeds up HR Secondary Metabolites: Terpenoids • intense smells from plants (compounds are volatile) • attract pollinators or acts in defense • spices: cinnamon, fennel, cloves, cumin, tarragons • carotenoids - coloration in many species • orange in carrots / leaves • red/pinks in feathers Flamingos get red/pink color from getting -β caroteniods from shellfish diet (shellfish get it from eating algae) Secondary Metabolites: • Polyketides • produced by bacteria, fungi, plants, insects, mollusks, & sponges • chemical weapons (highly toxic) • soil bacteria produce: streptomycin – which disrupts protein synthesis in other species, reducing competition • valuable medical tools – because toxic effects highly selective • antibiotics • inhibit growth of some cancer cells!...
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secondary_metabolites - speeds up HR Secondary Metabolites...

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