Study Set Content:
Cork cells of periderm
rectangular or boxlike cork cells
: makes the cork cells waterproof and helps them protect the phloem and other tissues beneath the bark from drying out, mechanical injury and freezing temperatures
Suberin
pockets of loosely arranged parenchyma cells that are not impregnated with suberin and protrudes through the surace of the periderm. They function in gas exchange between the air and the interior of the stem.
Lenticels
Derived from parenchyma o Can occur in various places in plants. o Most common secretary tissues are those that secreted nectar in flowers, oils in citrus, min and other many leaves; mucilage in the granular hairs of sundews, and other insect-trapping plants; latex in members of several families (Spurge Family); and resins in coniferous plants such as pine trees.
Secretory cells
Ground Tissue System
Parenchyma, Sclerenchyma, Collenchyma
Vascular Tissue
Xylem, and Phloem
Xylem is composed of
Tracheids, vessel elements, parenchyma cells, Fibers
Phloem is composed of
Sieve tube elements, companion cells, parenchyma cells, fibers
Dermal Tissue System
Epidermis and Periderm
What composed the epidermis
Parenchyma, trichome, guard cells
What is periderm composed of
Cork cells, Cork Cambium cells, cork parenchyma
