kingdom plantae. what is a plant? multicellular eukaryotes that are photosynthetic autotrophs cell...
DESCRIPTION
Obstacles Plants Overcome Absorb Minerals Conserve Water –Cuticle –StomataStomata –Guard Cells Reproduce on LandTRANSCRIPT
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Kingdom PlantaeKingdom Plantae
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What Is a Plant?What Is a Plant?Multicellular eukaryotes that are
photosynthetic autotrophsCell walls made of celluloseStore surplus carbohydrates as
starchMostly terrestrial
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Obstacles Plants Overcome Obstacles Plants Overcome
Absorb MineralsConserve Water– Cuticle– Stomata– Guard Cells
Reproduce on Land
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A Vascular System Enables A Vascular System Enables Plants to Thrive on LandPlants to Thrive on Land
Most plants need a “plumbing” system to transport water, minerals and nutrients. This system is known as the VASCULAR SYSTEM.
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Divisions of Living Plants Are Divided Divisions of Living Plants Are Divided into Nonvascular and Vascularinto Nonvascular and Vascular
There are 3 divisions of nonvascular plants– Hepatophyta – the Liverworts
• Simplest of plants (gametophytes are dominate • Flat leafy body lacking cuticle, stomata, roots, stems
or leaves– Anthocerophyta – the Hornworts
• Dominate gametophyte and have stomata– Bryophyta – the mosses
• Small, most have simple vascular tissue• Sporophyte with slender stalk and spore capsule• “leafy” green gametophyte that lacks roots, stems
and leaves
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Alternation Of GenerationsAlternation Of Generations Occurs in life cycle of all plantsOccurs in life cycle of all plants One generation is a multicellular haploid One generation is a multicellular haploid
condition and the next is a multicellular condition and the next is a multicellular diploid conditiondiploid condition
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GametesGametesArchegoniaArchegonia–Produce eggsProduce eggs
AntheridiaAntheridia–Produce spermProduce sperm
When water is available, When water is available, sperm swim to the eggssperm swim to the eggs
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Features of Vascular PlantsFeatures of Vascular PlantsDominate sporophyteDominate sporophyteSpecialized conducting cellsSpecialized conducting cellsDistinctive body formDistinctive body form–MeristemMeristem• ShootsShoots• RootsRoots
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Life Cycle of a Fern
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Evolution of the SeedEvolution of the SeedThere are 5 phyla of living
seed plants. Four of these phyla are collectively known as GYMNOSPERM.
The other phyla is ANGIOSPERMS.
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Seed plants produce two kinds of gametophytes.–Microgametophyte – produce
male–Megagametophyte – produce
female – These develop from a megaspore within the ovule.
A pollen grain consists of only a few haploid cells surrounded by a thick protective wall.
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PollinationPollination
WindInsectsanimals