Kingdom Plantae
Plant Characteristics
 AUTOTROPHIC
 MULTICELLULAR
 EUKARYOTIC
 MOST
 CELL
TERRESTRIAL
WALLS OF CELLULOSE
 Dominant
weight
 DIVERSE!!
tall!!
group on land based on
Range from 2mm to 100m
Are there exceptions?
Diversity?
KINGDOM
PLANTAE
NONVASCULAR
VASCULAR
DIVISION
BRYOPHYTA
DIVISION
TRACHEOPHYTA
MOSSES
LIVERWORTS
hornworts
Seedless: FERNS
SEED PLANTS
Nonvascular plants
hornwort
Seedless plants
Seed plants
 Gymnosperms
 Angiosperms
What obstacles did
plants have to over
come to live on land?
 DRYING
OUT - CUTICLE
& STOMATA
 MEANS OF
REPRODUCTION
 MEANS OF GETTING
WATER AND NUTRIENTS
 PRIMITIVE:
AMONG
THE 1st LAND PLANTS
 NONVASCULAR
 NO
TRUE ROOT
SYSTEM: HABITAT?
 NO
SIZE?
 SIZE
VASCULAR TISSUE:
LIMITED BECAUSE
SPERM MUST SWIM TO
FERTILIZE EGGS
 Plants
are about
3cm tall and 1 cell
thick
 Clump
of moss is a
bunch of tiny
individual plants
 Each
plant contains
rhizoids for
anchoring them in
soil.
 IMPORTANT
BUILDERS
 PREVENT
 PEAT
SOIL
EROSION
MOSS
(SPHAGNUM)
GROWS IN BOGS OR
PONDS & USED FOR
FUEL, MULCH, ETC.
Chloroplast
What role do plants play in the
Water cycle?
What role do plants play in the
Carbon Cycle?

Nitrogen


Proteins, N.A., chlorophyll,
ATP and growth
Carbon

Growth, photosynthesis

Potassium

 Phosphorus

ATP, ADP, N.A.,
phospholipids of cell
membrane
Active transport,
enzyme activation,
osmotic balance and
stomata opening
 Calcium

Cell wall, enzymes,
cell membrane
activity
 Magnesium

Part of chlorophyll,
needed for
photosynthesis and
activation of enzymes
 Sulfur

Proteins, cellular
respiration
What role do plants play in the
Nitrogen Cycle?
 Nitrification

Bacteria in soil take up ammonia and oxidize it into
nitrites and nitrates and plants use it to create
amino acids
 Denitrification

Process of how nitrogen is returned to the
atmosphere when bacteria break down nitrates
and release nitrogen gas
 Ammonification

Decomposers break down waste organisms and
release the N they contain as ammonia
Discuss Ways that plants move.

Phototropism


Gravitropism


Plant responses to gravity
Photoperiodism


Plant responses to light
the physiological reaction of organisms to the length of
day or night
Thigmotropism

Plant responses to touch
MALE & FEMALE ON
SEPARATE PLANTS
 MALE
REPRODUCTIVE
ORGAN=
ANTHERIDIUM
PRODUCES SPERM
 FEMALE
REPRODUCTIVE
ORGAN =
ARCHEGONIA
PRODUCES EGG
Photosynthesis