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