Hort hort hort loser Flashcards
Xylem
Delivers water and dissolved minerals to the leaf tissues, located on the upper side of the vein
Phloem
Carries sugar from the leaf, located on the bottom side of the vein
Gymnosperms
Plants whose seeds are not enclosed in an ovule (ie pinecone)
Angiosperms
The mature seed Is surrounded by the ovule
Abscission
Layer of loosely connected, thin-walled parenchyma cells that forms at the base of the petiole; the weak cell walls break, allowing the leaf to fall
Monocot
Long, narrow leaves, lack petiole, parallel veins, leaf wraps around stem in sheath
Dicot
Leaf has a broad, flattened blade connected to the stem by a petiole, which is a stem-like structure. Always bud a petiole, displays netted venation
Cuticle
Waxy layer to prevent water loss
Root functions
Absorb water and vital minerals, Anchor plants to the ground and provide above ground support, store food made through photosynthesis
Vascular cambium
The meristematic tissue that produces xylem to one side and phloem to another
Fibrous root system
A root system that has no dominant primary root but is made of many primary and secondary roots of similar size
(helpful in reducing soil erosion)
Adventitious
A root that arises from a organ other than the root
Aeria root
A type of adventitious root that grows from stems or leaves above ground, found on orchids, mangroves, and many species of vines
Stem
An organ that serves as the main stalk of a plant or that supports a plant part, such as a leaf, a flower, or a fruit
Functions of a stem
Support leaves, flowers, or fruit
Hold the leaves in the most efficient way to get sunlight
Moves water, minerals, and manufactured food throughout the plant
Green stems help produce food through photosynthesis
Store food manufactured by the plant
Make new living tissue that results in primary or secondary growth
