Lab quiz chapter 26

Protozoans

eukaryotes with animal like heterotrophic ecology, active consumers and not photosynthetic, food vaculoles

Amoebas (Super group Amoebozoa)

Found around world in marine freshwater and terrestrial environments, have pseudo pods, and are polyphyletic, lack flagella and reproduce asexually

Pseudopods

movable extension of cytoplasm used for locomotion and gathering food

Amoeba

structure and physiology typical of most amoeboid gnera, are phagytic

Smile Molds (Supergroup Amoebozoa)

Have physarum which is a slime mold that streams along the damp forest floor in bright colors, and plasmodium

Plasmodia

multi nucleate because their cell walls, and whole plasmodium resembles a moving mass of slime

what happens to plasmodium when dry

may dry into hard resistant structure called sclerotium and remain dormant until conditions improve

Formaininiferans (Supergroup Rizaria)

Marien organisms called “shelled amoebas” because they surround themselves with a secreted test and have long, this rather stiff pseudopods protruding their tests

Flagellates Supergroup Excavata

Have at least one flagellum and are likely the most primitave protozoans, parasticic as well as free living heterotrophs

Trypansoma

pathogenic and cause African sleeping sickness and Chagas disease, common in the tropics and spread by infection by biting insects such as mosquitoes and sand flies

Ciliates (Supergroup Chromalevolata

More than 8000 species, many have two types of nuclei, micronucli and macronucli, reproduce asexually by mitosis

Paramecium

Free living freshwater genus that is widely studied, undergoes a sexually process called conjugation

Conjucation

when individuals from two different strains along longitudinally and exchange nuclear material

A sexual reproduction is more comman than conjugation in what

Paramecium

Vorticella and Other CIliates

Vorticella is a freshwater cilate whhich is sessile (meaning attached to substrate), has contractile stalk that attaches the organism to substrate and a cell body with corona of cilia

APicomplexans (Supergroup chromalevolata)

typically nonmotile and are parasites of animals

Plasmodiaum

pathogen which is best known apicomplexan to be the most common killer in recorded history, mosquitos transit from human to human killing red blood cells,