Plants Flashcards
Multicellular, Photosynthetis Eukaryotes
Plants
Producers of our ecosystem
Plants
Plants provide living things with (2)
Food Oxygen (needed to break down nutrient molecules and produce ATP)
Source of fuel to keep us warm
Plants
We get this from plant to make our own clothes
Fibers
Advantage of land environment
Plentiful light for photosynthesis
CO2 is present in higher conc. and diffuses more readily in air than in water
A group of freshwater green algae
Charophytes
Examples of Charophytes
Spirogyra
Charales (Chara or Stoneworts)
Coleochaete
Chrarophytes features that exisit in land plants
Cellulose cell walls
Apical cells
Plasmodesmata
Placenta (disgnated cells)
It develops into a multicellular 2n generation
Zygote
Process of producing spores in multicellar sporangia
Meiosis
It produces gametes within a multicellular gametangia
Gametophyte generation
Other derived traits of land plants
The multicellular 2n embryo are retained and protected from drying out (Embryophyta)
It produces at least one, perhaps several, multicellular, sporangia
2n generation (sporophyte)
Produces spores by meiosis
Sporangia
A molecule that prevents drying out
Sporopollenin
Have an outer layer of sterile cells
Multicellular gametangia
Inner mass of cells
Gametes
Male gametangium
Antheridium
Female gametangium
Archegonium
Bryophytes include
Liverworts
Hornworts
Mosses
First plants to colonize land
Bryophytes
Suffix that means “herb”
Worts
Other features of Bryophytes
No true vascular tissues
Remain low-lying
Liverworts
Thallose
Leafy
Flattened bodies of Thallose Liverworts
Thallus
Liverworts that superficially resemble mosses
Comprises majority of liverwort species
Leafy liverworts
Present in disk-shaped structures
Antheridia
Present in umbrella-shaped structures
Archegonia
A structure in liverworts that can detach and start a new plant
Gemmae
Scientific name of liverworts
Marchantia
Scientific name of hornworts
Anthoceros
It grows as a thin rosette or ribbonlike thallus between 1 and 5 cm in diameter
Hornworts
Largest phyla of nonvascular plants, with over 15,000 species
Mosses
Groups of Mosses
Peat mosses
Granite mosses
True mosses
Types of Vascular Plants
Non-flowering or non-seed-forming
Flowering or seed plants
Types of Lycophytes
Ground pines (Lycopodium) Spike mosses (Selaginella) Quillworts (Isoetes)
Roots that come off a branching, underground stem
Rhizome
Microphylls that bear sporangia
Sporophylls
Grouped sporophylls that is club-shaped
Strobili (accounting to the name club mosses)
Seedless vascular plants that include ferns, horsetails, and whisk ferns
Pterydophytes
2 groups of flowering or seed plants
Gymnosperms
Angiosperms
Naked seed and are not enclosed within fruits; instead produce cones
Gymnosperms
Examples of Gymnosperms
Pine trees
Cycads
Seeds are found within fruits
Angiosperms
Examples of Angiosperms
Tomato
Mango
Avocado
Consists of over 80% of all living plants
Angiosperms
2 classes of angiosperms
Monocotyledons (monocots)
Dicotyledons (dicots)