BIOL 101 Lecture Notes - Lecture 14: Sporophyte, Flowering Plant, Parenchyma
Document Summary
Plant structure, growth, and differentiation (emphasis: the angiosperms) Most plants have bodies that can"t relocate. Those bodies still must be capable of acquiring multiple resources. Obtains water and dissolved minerals from soil for the plant. Reproductive structures- flowers and fruits in flowering plants. Composed of living parenchyma cells with thin primary cell walls. Composed of collenchyma cells with unevenly thickened primary cells with thick wall corners. Composed of sclerenchyma cells that have sclereids or fibers and both are both primary and secondary cell walls. Trichome and root hair (outgrowths or hairs) Conducts materials throughout plant body and provides strength and support. Complex tissue, conducts water and dissolved minerals. Conducting cells of xylem are dead at maturity have tracheids and vessel elements. Fibers (sclerenchyma) for support but also dead. Sieve tube elements(ste) that functions without nucleus and assisted by companion cells connected to the ste by plasmodesmata. Parenchyma cells for storage and fibers for support.
