unit 2- biodiversity of plants Flashcards
four divisions into which the kingdom plantae are divided
-Bryophytes
-Pteridophytes
-Gymnosperms
-Angiosperms
the phenomenon where generations alternate in that one generation gives rise to the other
-Alternation of generations
what’s the generation which is sexual and produces gametes
-Gametophyte generation
which generation is asexual and produces spores
-Sporophyte Generation
what is the plant division which includes mosses, liverworts and hornworts
-Bryophytes
What is the dominant generation in the life cycle of mosses
-gametophyte generation
what is the name given to a plant where true roots, stems and leaves cannot be distinguished
thallus
What is the cap that covers the sporangium in bryophytes called
-calyptra
what is the plant division including all ferns
-Pteridophytes
what is the dominant generation in the life cycle of ferns
-sporophyte generation
what is the horizontal underground stem occurring in most ferns
-rhizomes
what is the vascular tissue present in ferns
-xylem and phloem
what are the clusters of sporangia found on the underside of fern leaves
-sori
what is the heart shaped structure that germinates from a spore of a fern and represents the gametophyte generation
-prothallus
what is the collective name given to the seed bearing plant groups, Gymnosperms and Angiosperms
-Spermatophytes