Plant Structure: Chapter 35 Flashcards
What is the hierarchical organization of plants
Organs → tissues → cells
Components of vascular plant shoots
They consist of stems and leaves
Roots
Anchor the plant, absorb and conduct water and minerals and store food
What are leaves connected to
Nodes
What are nodes
They are the main organs of photo synthesis
Is the area where great cellular activity and growth occurs
Where small buds develop into leaves, flowers, etc
Area on stem where buds are located
Axillarybuds location?
In the axils ot leaves and stems which gives rise to branches
What are the 3 tissue systems of vascular plants
Dermal, vascular and ground
What is dermal tissue?
A continuous layer of cells that cover the plant exterior
What are vascular tissues?
Aka xylem and phloem; they facilitate the long distance transport of substances
What is ground tissue?
Storage, metabolism and regeneration
Parenchyma cells
Thin walled calls that can divide
they perform most metabolic functions of synthesis and storage
Collenchyma cells
Thick walled cells that support young, growing parts of the plants
Sclerenchyma cells
Sclerelds and fibers; thick dignified walls that support mature nongrowing parts of the plant
Tracheids and vessel elements
The water conducting cells of the xylem; have thick walls and are dead at functional maturity
Sieve - Tube elements
Living but highly modified cells that are devoid of internal organelles; they transport sugars through the phloem of angiosperms
