Bio LAB chap 6 - animal like protists Flashcards
what is a protist
any eukaryotic organism that is’t an animal, plant, or fungus
characteristics of a protist
- unicellular
- eukaryotic cell
- microscopic
- aquatic or terrestrial
- free living / colonial
- symbiotic
a symbiotic relationship where 1 organism benefits at the expense of the other is a ____________ relationship
parasitic
ex: a tick living on a another organism
a symbiotic relationship where one organism benefits is called a ___________ relationship
commensalistic
ex: a bird catching a ride of a the back of a yak
a symbiotic relationship where both organisms benefit is called a _____________ relationship
mutualistic
ex: sea anemone & a clown fish living in tandem
2 types of protists are:
- protophyta (exhibit plant like characteristics)
- protozoa (exhibit animal like characteristics)
(note - some organisms exhibit forms such as euglena)
what are the ways in which protists get nutrition
- autotrophic - make their own food
- heterotrophic - eating other plants or animals
- saprozoic - nutrients acquired through the plasma membrane
holozoic
organism feeds on animal
holophytic
organism feeds on plants
phagocytosis
cellular eating
define locomotion
the movement of an organism from one place to another
3 types of locomotion in protists
- pseudopodia
- flagella
- cilia
how do protists reproduce
through both asexual and sexual reproduction, and they’re usually used together
describe asexual reproduction in protozoans
fission (splits), diplicates the original cell so you’re left with 2 of original
describe sexual reproduction in protozoans
conjugation, swap of genetic material with other protozoans