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Trap small insects which become trapped inside plant and digest them for nutrientsoSome plants gain nutrients by paricitizing on other plants and may be photosynthetic or non photosynthetic- dodder, indian pipeDescribe phytoremediation and how plants are employed to clean polluted sites.oChosen based on pollutants in soiloPlants take pollutant out of soilo1. Phytodegregadation- just absorbedo2. Taken up through soil and released through stomatao3. Concentrated in shootsIdentify defensive features of the plant dermal tissueoPhysical barriers- dermal tissue provides the protection. The epidermis has the cuticle (waxy coat), tricombs, silica inclusions, or bark (modified stem). oFungi look for cracks in plants or stomas in leafs to extract nutrients from the plantsoNemetodes chew through cell walls to extract carbs- result = tumorous growthoChemical defenses- strong flavors and odorsoMost common- production of cyanide- oCyanide stops cellular respirationoHelps plants not poison themselves because only happens when damagedProvide examples of human uses of plant secondary metabolites.oTaxon, quoinine, (these two kill cancer), morphine, peppermint, capsisin, niccotineDescribe mutualistic interactions between plants and animals that provide defense for plants.oMutualistic relationships. oAnts attack cadidid to protect acacia tree
Describe the genetic and chemical responses plants use to defend themselves against pathogens and herbivores.Lesson 5