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Kingdom Plantae
AUTOTROPHIC
MULTICELLULAR
EUKARYOTIC
MOST TERRESTRIAL
CELL WALLS OF CELLULOSE
Dominant group on land based on weight
DIVERSE!! Range from 2mm to 100m tall!!
Plant Characteristics
Are there exceptions?
Diversity?
M O S S E SL IV E R W O R TS
D IV IS IO NB R Y O P H Y TA
N O N V A S C U L A R
F E R N SS E E D P L A N TS
D IV IS IO NTR A C H E O P H Y TA
V A S C U L A R
K IN G D O MP L A N TA E
hornworts
Seedless:
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 VASCULAR TISSUE: SIZE?
SIZE 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 SOIL BUILDERS
PREVENT EROSION
PEAT 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 Active transport,
enzyme activation, osmotic balance and stomata opening
Phosphorus ATP, ADP, N.A.,
phospholipids of cell membrane
Magnesium Part of chlorophyll,
needed for photosynthesis and activation of enzymes
Calcium Cell wall, enzymes,
cell membrane activity
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
Plant responses to light
Gravitropism Plant responses to gravity
Photoperiodism 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