Plants Flashcards
(48 cards)
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