12.1 - 12.4 - Angiosperm Stuff ("Classification of Plants & Plant Structures") Flashcards
(10 cards)
Cotyledons
Structures that supply nutrients to the plant embryo
“Seed leaf”
SEEDS
Monocots vs. Eudicots
Monocots - Has 1 cotyledon (seed leaf)
Eudicots - Has 2 cotyledons (seed leaf)
Venation
Veins
LEAVES
Monocots vs. Eudicots
Monocots - Parallel venation
Eudicots - Branching network venation
Vascular bundles
Arrangement of xylem & phloem vascular tissues
Note: Xylem cells are dead at maturity, but phloem cells are alive. Also, xylem & phloem tissues DON’T have nuclei
STEMS
Monocots vs. Eudicots
Monocots - Vascular bundles found throughout ground tissue
Eudicots - Vascular bundles form ring
Vascular cylinder
Central core of the stem & root of a plant; Contains xylem & phloem tissue
ROOTS
Monocots vs. Eudicots
Monocots - Circular
Eudicots - X-shaped
Herbaceous vs. Woody
Herbaceous - Plants with stems that don’t have wood
Woody - Plants with stems that contain wood
Structure of Woody stems:
Vascular cambium & cork cambium
Vascular cambium - Meristematic cell layer in vascular tissue. Xylem tissue in on inside, phloem on outside. A layer of each is produced every year.
Cork cambium - Meristematic layer in a woody plant that produces cork