IB 103 - Bryophytes

bryophytes and green alga share

chlorphylls a and b, carotenoids, starch as a food reserve, phragmoplast, cell plate

bryophytes lack true

vascular tissue

bryophytes have root like __ for attachment

rhizoids

__ __ is crucial for bryophytes to sexually reproduce

external water

bryophyte thallus (leafy plant) is __

gametophyte

liverworts

flattened lobed thalli, thallus forks dichotomously

often resemble mosses

dioecious

distinct upper and lower surfaces

asexual reproduction with gemmae

sexual reproduction with gametangia

mosses

gametophytes have leaf-like blades one-cell thick

numerous chloroplasts

sexual reproduction with archegonia and antheridia

pioneer species on bare rock

hornworts

cells have one chloroplast

asexual reproduction by fragmentation

sexual reproduction involves archegonia and antheridia produced in rows beneath thallus upper surface

zygotes developed into ___ embryos

multicellular

true or false: bryophytes have a single common ancestor

false