Roots And Stems Flashcards
What are the 2 types of flowering plants?
Monocot and eudicot
What are the 3 types of ground tissue?
Parenchyma, collenchyma and sclerenchyma
2 types of xylem
Vessels, fibres and tracheids
2 types of phloem
Sieve tube cells and companion cells
Function of meristems
Produce new cells that differentiate into other cells
Function of phloem
Transport photosynthetic products throughout the plant
Function of dermal cells
Forms thin protective layer on outer surfaces of plant
Function of parenchyma
Store energy reserves, photosynthesis/differentiate into other plant cell types
Function of collenchyma
Provide support to structures while still allowing for continued growth
Function of sclerenchyma
Provide hard rigid, physical support to plant
Function to meristems
Thin cell walls, lack diff, rapid cell division, sensitivity to physical and hormonal signals
Structure of dermal cells
Forms a single, densely packed layer of cells and often secretes a waxy layer- cuticle on surface
Structure of parenchyma
Thin cell walls, lacks diff, sensitivity to physical and hormonal signals,contains large vacuoles/ many chloroplasts
Structure of collenchyma
Unevenly thickened primacy cell walls (corners)
Structure of sclerenchyma
Dead cells w thick secondary cell walls impregnated with lignin - gives walls strength
