Types of Plant Tissue
Meristematic
Tissue
Dermal
Tissue
Ground
Tissue
Vascular
Tissue
Meristematic
Tissue
Tissues that have the
ability to enlarge,
stretch and differentiate
into other types of cells
as they mature
meristematic func
plant growth (lenth or width), actively dividing cells
ndifferentiated cells:
do not have unique functiond YET, when matures, becomes permanent tissue
meristematic physical
Small, equal shaped cells, compact
With cell cytoplasm, latge nucleus
Thin cell walls
Apical meristem
tip of shoot/root system, found at apex, for growth of shoot, and producing root cells and growth of root top
Lateral
growth in width and diameter of stems, rooots
types of lateral
vascular combium, produces secondary xylem or wood and secondary phloem or bark like tissue
Cork cambium: produces outer protective layer of bark
Primary meristem:
apical
Secondary:
lateral
Intercalary meristem
base of leaves, to contribute primary growth by increasing stem nad leaf lengeth, enables plants rapid growth after bring cut
types
Simple: parenchyma cells or parenchyma tissue, collenchyma and sclerenchyma,
Complex: xylem and phloem.
Permanent:
other, like protection/storage/absorbtion, made of differenciated cells
When mature, specialized function
Dermal
Covers the plant and can be
found on the outer layer of
roots, stems and leaves.
dermal func
transpiration, gas exchange
and defense.
dermal has
cuticle (waxy on leaves and stem to waterproof and protect, prevents excessive water loss
each stoma bordered by
2 gaurd cells that controls opening of pore size by using turgor pressure which allows balance of need of co2 and conservation of water
tiny opening in leaves nad stems that helps regulate gas exchange
stomata(co2 for photosynthesis and water vapor for transpiration.)
root hairs:
increase surface area of water and nutrient for absorbtion,
epidermal hairs called trichomes :
f
trichomes
or defense of microorganisms that will invade the plant, reduce water loss,
Helps transpiration
Ground Tissue
Carries out different functions
based on the cell type and
location in the plant, including
photosynthesis, structural
support for the stem and the
vascular tissue, and storage for
water and sugars
types of ground
parenchyma:
collenchyma: l
Sclerenchyma
parenchyma
most abundant, living cells, thin flexible cell walls, metabolic functions like photosyntheiss and food storage