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PLANT KINGDOM (General Characteristics (Eukaryote Plant Cell (Cell Wall,…
PLANT KINGDOM
General Characteristics
They are Multicellular
They can´t move around
They are Autothrops
Eukaryote Plant Cell
Cell Wall
Large Vacoules
Chloroplast
Nucleus in One Side
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Nutrition
PHOTOSYNTESIS
(to produce their own food)
CO2 to O2
It occurs in leaves and green stems
The chloroplasts contain chlorophyll, that captures sunlight
They take inorganic compounds and produce organic compounds
In this process, plants take CO2 and produce O2
VASCULAR SYSTEM
(to transport substances)
XYLEM
Transport raw sap (water + mineral salts)
From the roots to the leaves
PHLOEM
Transport elaborated sap (nutrients formed through photosyntesis)
From the leaves to the rest of the plant
CELLULAR RESPIRATION
(to produce energy)
O2 to CO2
Organic Compounds + Oxygen Produce Energy
It needs oxygen and produces CO2
Inside Mitochondria
TYPES OF PLANTS
FLOWERING PLANTS WITH SEEDS
GENERAL CHARASTERISTICS
They have roots, stems and leaves
They have a reproductive organ:
The Flower
They are vascular plants
TWO TYPES
GYMNOSPERMS
The most important group: CONIFERS
Seeds protected by
CONES
Examples: Pines, Cypresses...
Their seed are not protected by a fruit
ANGIOSPERMS
They have colorful and complex flower
Parts of the flower:
Seeds protected by a fruit
SEXUAL REPRODUCTION
1.
POLLLINATION
: pollen grains travel from the flower of one plant to another by the
wind
or carried by
insects
FERTILISATION:
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
https://youtu.be/djPVgip_bdU
NON - FLOWERING AND SEEDLESS PLANTS
MOSSES
They don´t have true roots, stem or leaves
They are non-vascular plants (they don´t have xylem or phloem)
FERNS
They have true roots, stems (called rhizomes) and leaves (called fronds)
They reproduce from spores
They are vascular plants (they have xylem and phloem)
