Plants Flashcards
Are plants heterotrophic or autotrophic?
AUTOTROPHIC!!!
What are cell walls made out of?
Plants: Cellulose
Fungi: Chitin
What do plants store carbs as?
Starcg
Bryophytes
Lack vascular tissue
Moist environments only because have to absorb water
Tiny
Examples of bryophytes
Mosses, liverworts, and hornworts
Tracheophytes
Vascular tissue
Seedless plants and seed plants
What are tracheophytes divided into?
Seedbearing ones are divided into:
Gymnosperms and angiosperms
Gymnosperms
Conifers
Have cones that seeds are formed on
Evergreens
Angiosperms
Flowering plants
What are angiosperms subdivided into?
Monocots and dicots
Example of Monocots
Grasses, wheat, corn, oats, rice and other typical food
Also palm trees
Examples of dicots
Oak, walnut, and cherry trees
Daises, roses, carrots
Most flowering plants and trees
Cutin
waxy coating on leaves
Meristem tissue
constantly divides
lets plants keep growing
Primary growth
plants vertical growth
Zone of cell division
part of primary growth
the part of a root tip where mitosis is occurring
Zone of elongation
Cells elongate and push the root further down into the soil
Zone of differentiation
cells start to specialize
Secondary growth
lateral growth
increase in girth
Epidermis
Covers the entire surface of the root
Cortex
Primarily for storage
Parenchyma cells for storage
Stele
Transport
consists of vascular tissues
Endoderm
wrapped tightly with the Casparian strip
selects what minerals enter the vascular system
Rhizobium
Symbiotic bacterium that lives in the nodules on roots of specific legumes
Taproot
Single, large root that gives rise to lateral branch roots
Adventitious roots
Roots that rise above ground
Two types of adventitious roots
Aerial roots
Prop roots
Aerial roots
Trees that grow in swamps have aerial roots
stick out of the water
Prop roots
Grow aboveground
Ex: corn
Function of the stem
support