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PLANT KINGDOM (GENERAL CHARACTERISTICS (THEY HAVE EUKARYOTE PLANT CELL…
PLANT KINGDOM
GENERAL CHARACTERISTICS
They are multicellular
They can't move around
They are artrophods (photosyntesis)
THEY HAVE EUKARYOTE PLANT CELL
cell wall
chloroplast
large vacuoles
NUTRITION
PHOTOSYNTESIS
(they produce their own food)
The chloroplast contain chlorophyll, that captures sunlight
They take inorganic compounds and produce organic compounds
In this process, plants take
CO2
(carbon dioxide)and produce
O2
(oxygen)
It occurs in leaves and green stems
CELLULAR RESPIRATION
(produce energy)
Organic compounds + oxygen produce energy
It needs oxygen and produce
Co2
(carbon dioxide)
Inside mitochondria
VASCULAR SYSTEM
(to transport substances)
PHLOEM
Transport elaborated sap (nutrients formed throught photosynthesis)
From the leaves to the rest of the plant
XYLEM
Transport raw sap ( water * mineral salts)
Frow the roots to the leaves
TYPES OF PLANTS
NON-FLOWERING AND SEEDLESS PLANTS
MOSSES
They are
non-vascular plants
(they don't have xylem or phlomem)
They
don't have
true roots stems or leaves
FERNS
They are
vascular plants
(they have xylem and phloem)
They
have
true roots, stems (called
rhizomes
) and leaves (called
fronds
)
The reproduce from
spores
FLOWERING PLANTS WITH SEEDS
Geneal characterisics
They have roots, stems and leaves
They have a
reproductive organ
: the
flower
They are vascular plants
TWO TYPES
GYMNOSPERMS
Examples: pines, cypresses
ANGIOSPERMS
They have colorful and complex
flowers
Parts of a flower
Seeds
protected
by a fruit
https://www.youtube.com/watch?time_continue=1&v=djPVgip_bdU
SEXUAL REPRODUCTION
1.POLLINATION
pollen grains travel from the flower of one plant to another by the
wind
or carried by
insects
2.FERTILISATION
when a pollen grain reaches the stigma, it creates a long pollen tube that reaches the ovary, where it fertilizes an ovule
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The most important group:
CONIFERS
Seeds protected by
CONES
The seeds are
not protected
by a fruit
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