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PLANT KINGDOM: :smiley: :white_flower: :<3: (General characteristics: …
PLANT KINGDOM:
:smiley: :white_flower: :<3:
Nutrition:
:pancakes:
PHOTOSYNTESIS
( to produce their own food ).
They take inorganic compounds and produce organic compounds.
It occurs in leaves and green stems.
The chloroplast contain chlorophyll; that captures sunlight.
In this process, plants take CO2 and produce O2.
CELLULAR RESPIRATION
( to produce energy ).
Inside mitochondria.
Organic compounds + oxygen produce energy.
It needs oxygen and produce CO2.
VASCULAR SYSTEM:
( to transport substances ).
Xylem:
Transport raw sap ( water + mineral salt ).
From the roots to the leaves.
Phloem:
Transport elaborated sap
( nutrients formed through photosyntesis ).
From the leaves to the rest of the plant.
General characteristics:
:sunflower:
They have eukaryotic plant cells.
Nudeus in one side.
Cell wall.
Large vacuoles.
Chloroplast.
They are autotrophs ( photosynthesis ).
They are multicellular.
They can't move around.
Types of plants.
:<3:
NON-FLOWERING PLANTS:
MOSSES.
They are
non-vascular plants
( they don't have xylem or phloem ).
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
)
They reproduce from
spores
.
FLOWERING PLANTS WITH SEEDS.
GENERAL CHARACTERISTICS
:
They are vascular plants.
They have roots, stems and leaves.
They have a reproductive organ: The
flower
.
TWO TYPES
GYMNOSPERMS
: :
Their seeds are
not protected
by a fruit.
The most important group:
CONIFERS
Seeds protected by
CONES
.
Examples: pines; cypresses.
ANGIOSPERMS:
They have colorful and complex
flowers
.
Parts a
flower
:
Seeds
protected
by a fruit.
Flowers video
.
https://www.youtube.com/watch?v=djPVgip_bdU
SEXUAL REPRODUCTION:
1.-Pollination
: pollen grains travel from the flower to one plant to another by the wind or carried by insect.
2.-FERTILIZATION:
when a pollen grain reaches the stigma, it creates a long pollen tube that reaches the ovary, where it fertilizes an ovule.
3.-SEED FORMATION:
the fertilized ovule ( the
zygote
) becomes a
seed
.
4.-FRUIT FORMATION:
the ovary becomes a fruit, that protects the seeds.
