Protists Flashcards
protista
kingdom of mostly unicellular eukaryotes
three types of protists
unicellular, colonial, multicellular
methods of reproduction for protists
sexually, asexually, syngamy
syngamy
meiosis and fertilization
nutritional diversity of protists
photoautotrophs, heterotrophs, mixotrophs
mixotrophs
combine photosynthesis and heterotrophic nutrition
algae
unicerllular or filamentous photoautotrophs; mostly aquatic
thallus of algae
body of multicellyular algae
multicellular algaes
brown, red, greeen, yellow
thallus of algae consists of
holdfast, stipe, blade
all algae reproduce
asexually
multicellular algae can reproduce
sexually via alteration of generations and can fragment
Chlamydomonas
unicellular green algae, bi flagellate, has eyespot
brown algae
cellulose and alginic acid cell walls, multicellular and macroscopic
algin
substance produced by brown algae; used as food thickener
pneumocyst
pocket filled with gas to help brown algae float
red algae
have branched thalli, most are multicellular
red algae harvested for
agar and carrageenan, some produce a lethal toxin
green algae
cellulose cell wall, uni or multicellular, chlorophyll a and b - thought to be evolutionary link to land plants
diatoms
pectin and silica cell walls, unicellular or filamentous, store oil
diatoms produce
domoic acid which can cause neurological disease