BIOL 1002 Chapter : Chapter 43
Document Summary
It is so the roots can breath and get oxygen (similar to snorkeling: roots of many orchids are photosynthetic, green roots are usually conducting photosynthesis, plant growing on another plant: epiphyte: a plant that lives on another plant. Stems: branch is an example of a stem that lives year after year after year. Stolons "runners" are horizontal, wandering aboveground stems: rhizonmes: a horizontal, belowground stems, ex: edible base of a ginger plant, do not have the typical structure or organization of a root. Simple leaf: blades, compound lead leaflet, doubly compund leave, axilary bud always at the bottom. Some arid adapted plants have succulent leaves: plants that can hold water: cam, aloe vera. Leaves specialized into spines to help defend against herbivores: cactus, undifferentiated meristematic cells occur in buds, all the same, whole plant growth is indeterminate, but growth of some organs is determinate.
