Transcript KINGDOM PLANTAE

KINGDOM
PLANTAE
WHAT ARE THE CHARACTERISTICS OF
PLANTS?
ALL PLANTS:
ARE MULTI-CELLULAR
Made of more than one cell.
ARE MACROSCOPIC
Can be seen with the naked eye.
PLANT CELLS
WHAT TYPE OF
CELLS ARE
PLANT CELLS?
EUKARYOTIC
Nucleus
PLANT CELLS
Cell Wall
The cell wall is made
primarily of
CELLULOSE, a
complex carbohydrate.
• Keeps the cell from
rupturing
• Prevents water loss
• Shape and protection
PLANT CELLS
Vacuole
Vacuoles are
membrane-bound
spaces used for
temporary storage of
materials.
Chloroplast
PLANT CELLS
The chloroplasts are cell organelles
that capture light energy and produce
food (glucose) to store.
They contain the photosynthetic
pigment, CHLOROPHYLL. This
primary photoreceptor absorbs the
light energy.
CHLOROS- “green”, PHYLLON- “leaf”
ALL PLANTS:
are
(also called producers) because they
can produce their own food.
6CO2 + 6H2O→C6H12O6 + 6O2
There are a few plants that are also heterotrophs:
They attract, capture, and kill organisms (mostly insects)
and absorb the nutrients from their prey.
WHY ARE PLANTS IMPORTANT TO
HETEROTROPHS?
oxygen
Many medicines
are made from
plant materials.
Without plants, we
wouldn’t have
chocolate, tea, or
coffee
plant reproduction
All plants reproduce sexually.
Some can also reproduce asexually.
ALTERNATION
OF
GENERATIONS
During their lives, all plants alternate between:
a haploid (half the chromosomes) gametophyte (produces gametes) stage
and
a diploid (complete set of chromosomes) sporophyte (produces spores) stage
PLANTS ARE DIVERSE
Some plants are terrestrial
Some plants are aquatic
PLANTS ARE DIVERSE
Plants vary in size
Rafflesia
Duckweed
CanAmorphophallus
be around 1 mmtitanum
Redwood trees
Can get up to 350 ft tall
PLANTS ARE DIVERSE
LIFESPAN
Brassica rapa: 40 days
Bristlecone Pine: 5000 years
Plants are believed to have evolved from
green algae.
Green algae and plants both have: cell walls made of cellulose
contain chlorophyll
store food in the form of starch