Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chapter 28 (Secondary Growth (Vascular Cambium (Located between xylem and…
Chapter 28
Secondary Growth
Vascular Cambium
Located between xylem and phloem in the roots and stems of vascular plants, and it is responsible for secondary growth of both xylem and phloem.
Cork Cambium
Stem tissue that has cork on it's outer surface, and layers of cells containing chlorophyll on it's inner surface.
Only occurs in wood plants, it is the growth in thickness. Increases diameter of stems and roots. Both primary and secondary
Meristem
Tissues that remain embryonic throughout the life of the plants, and it allows for intermediate growth of the plant.
-
Periderm
The outer, corky, layer of a stem that either forms in secondary thickening or in response to injury.
Xylem
A type of vascular tissue that carries water and dissolved nutrients from the roots to the rest of the plant, as well as assisting in the formation of the woody element in the stem.
-
Primary Growth
Occurs at apical meritisms in the roots and shoots. All plants have primary growth. This type of growth affects the length.
Apical Bud
Where the plant grows up, made up of growing leaves and series of nodes and internodes.
Axillary Bud
An embryonic shoot. Forms in the space between a leaf and a stem, it has the ability to either form a leaf or a new stem.
Woody Plants
A plant that forms wood as it's main structural tissue. Their stems and roots are also covered in wood to create a more durable, larger plant.
-
Apical Dominance
The main, upward, stem has growth dominance as opposed to the branching stems.
Plant Organs
-
Leaves
Where most photosynthesis in a plant takes place. The leaf has many jobs: photosynthesis, gas exchange, heat dissipation, and defense.
-
Roots
Part of a vascular plant. It acts as an anchor, holding the plant in place. While simultaneously absorbing water and nutrients from the soil. It often has the ability to store carbohydrates, as well.
Taproot System
One large vertical root (taproot) goes in the soil, which prevents falling. Smaller roots that branch off are the absorbers. This system allows for tall plants.
-
-
Major Tissues
-
-
Dermal Tissue
The outerprotective layer of a plant, akin to skin in animals.
-
Woody plants have a periderm, which offers more protection.
-
-