lab 5 Flashcards
(26 cards)
what 4 evolutionarily related groups are kingdom plantae broadly composed of?
1.nonvascular plants- bryophytes (mosses)
2.vascular plants
3. vascular seedless plants
4. vascular seed plants
what are the phylogenetic groups of vascular seed plants
- phylogenetic group 1- gymnosperms (cone bearing seed plants
- phylogenetic group 2 -angiosperms (flowering seed plants)
how does kingdom plantae reproduce
sexually and asexually
kingdom plantae have organelles called chloroplasts and cell walls made of cellulose
T
kingdom plantae is mainly nonmotile and embryo forming
T
kingdom plantae is autotrophic, multicellular, and eukaryotic
T
bryophytes are eukaryotic and multi celled (cell wall made of cellulose) ?
yes
what do non-vascular plants lack ?
xylem and phloem vessels
how do bryophytes (mosses) get their water?
must be absorbed directly from the surrounding air or another nearby source
most mosses and liverworts live in moist areas because of?
their need to absorb water directly from the surrounding air
what do bryophytes not produce?
do not produce seeds and flowers or fruit
what are the 3 phyla of bryophytes ?
- phylum Antherocerophyta-Hornworts
- phylum Bryophta - mosses
- phylum hepatophyta-liverworts
bryophyta is the scientific name of
bryophytes
bryophytes is the common name of phylum
bryophyta
what is phylum anthocerophyta name for?
named for slender, curved horn-like structures that grow out of the gametophytes (anchored by rhizoids-long tubular single cells)
hornworts prefer moist soils mixed with grass plants unlike mosses and liverworts
T
horn like structures of phylum anthocerophyta are?
sporophytes
what are the specialized pored called on sporophytes
stomata
what is the common name for phyla bryophyta?
mosses
what does each plant of phylum bryophyta have
each plant has rhizoids at the base that anchors them to the soil
how do bryophytes reproduce ?
alteration of generations
in phylum bryophytes the plant part that is seen in the environment is called
gametophye (bears either archegonia(female) or antheridia(male) at the tips)
phylum bryophyta archegonia forms ____ but each antheridia forms _____
- one egg 2. many sperm
in phylum bryophyta when can fertilization occur?
only after rain when the gametophyte is covered in water