Protists

1. Ancestor ofeukaryotes.

2. Infoldings ofmembrane.

Chromosomes

Plasma membrane

3. Eukaryotic cell.

Nucleus

Endoplasmicreticulum

Eukaryotic vs. Prokaryotic cells

endosymbiosis

Eukaryotic vs. Prokaryotic cells

Protist Diversity

This icon shows the overalltree of life. The highlightedbranch indicates which lineageis shown in more detail below

All eukaryotesare protists(orange branches)except for thefungi, animals,and land plants

Bacteria

Archaea

EUKARYA

Fungi

Animals

Land plants

Bacteria

Archaea

EUKARYA

Commonancestorof alleukaryotes

Paraphyletic group

Unikonta vs bikonta

Bacteria

Archaea

Lobose amoebae

Cellular slime molds

Plasmodial slime molds

Fungi

Choanoflagellates

Animals

Parabasilids

Diplomonads

Euglenids

Kinetoplastids

Glaucophyte algae

Red algae

Green algae

Land plants

Greenplants

Foraminifera

Chlorarachniophytes

Ciliates

Dinoflagellates

Apicomplexa

Oomycetes

Diatoms

Brown algae

STRAMENOPILA

ALVEOLATA

RHIZARIA

PLANTAE

EXCAVATA

BIK

ON

TA

CH

RO

MA

LVE

OL

ATA

UN

IKO

NTAOPISTHOKONTA

AMOEBOZOA

All eukaryotesare protistsexcept for thefungi, animals,and land plantsEUKARYOTES

7 lineages of protists

Adaptations for obtaining energy - ingestion

pseudopodium

AMOEBOZOA

OPISTHOKONTA

EXCAVATA

Parabasilids

Diplomonads

Euglenids

Kinetoplastids

PLANTAE

Glaucophyte algae

Red algae

Green algae

Land plants

RHIZARIA

Foraminifera

Chlorarachniophytes

Ciliates

Dinoflagellates

Apicomplexa

Oomycetes

Diatoms

ALVEOLATA

STRAMENOPILA

CH

RO

MA

LVE

OL

ATA

Brown algae

EUKARYOTES

Primary (initial)endosymbiosis:occurred here

Secondaryendosymbiosis:Red algal and greenalgal chloroplastswere transferred toother protists

Primary vs secondary endosymbiosis

Adaptations for movement

Alternation of Generations