plants part 1 Flashcards
Root System functions
Generally underground
Obtains water and dissolved minerals for
the plant
Anchors the plant firmly in place
Shoot System functions
Generally aerial
Obtains sunlight
Exchanges gases
CO2 , oxygen, water vapor
Shoot System Consists of
a vertical stem that bears leaves
reproductive structures
buds
main organs
of photosynthesis)
leaves
buds are
Buds (undeveloped embryonic shoots)
develop on stems
Vascular Tissue System functions
Conducts materials throughout plant body
Provides strength and support
Xylem
Complex tissue, conducts water and
dissolved minerals
Conducting cells of xylem
tracheids
vessel elements
Phloem
Complex tissue, conducts sugar in solution
Conducting cells of phloem
sieve tube elements
assisted by companion cells
Dermal Tissue System is and contains
Outer protective covering of plant body Epidermis or Periderm
Epidermis is
complex tissue
covers herbaceous plant body
Periderm is
complex tissue
covers woody parts of plant body
Epidermis function
Waxy cuticle reduces water loss
Stomata permit gas exchange
Trichomes (outgrowths or hairs)
how does the Waxy cuticle reduces water loss
secreted by epidermis covering aerial parts
how does the Stomata permit gas exchange
between shoot system and atmosphere
Growth in Plants _____ in specific regions called _____
Localized (meristems)
what are the 3 groth processes in plants
cell division
cell elongation
cell differentiation
what 2 locations are Apical Meristems
at tips of roots and shoots
within buds of stems
Apical Meristems arwe Responsible for
primary growth