3.2 - plantae Flashcards
characteristics of plantae
eukaryotic
multicellular
autotrophic
adapted to life on land
waxy cuticle
stomata
cell wall made of cellulose
origins of plantae
evolved from plant-like protists (425-490 million years ago)
reproduction of plantae (alternation of generations)
sporophyte produces spores which develop into haploid organisms
gametophyte produces gametes which develop into diploid organisms
4 types of plantae
bryophytes
lycophytes and pterophytes
gymnosperms
angiosperms
bryophytes
mosses, liverworts etc.
simplest land plants
no true leaves roots or seeds
lycophytes and pterophytes
club mosses and ferns
simple vascular tissue
produce spores in a structure called a sorus
gymnosperms
conifers
seeds in cones
needles with waxy cuticle
angiosperms
flowering and fruiting plants
seeds enclosed
pollen is transferred to the egg within a flower + embryo develops