Topic 5: Diversity of Eukarya

Question 1

State the Eukaryotic Super Groups:

Answer 1

Amebozoa
Ophistokonta
Archaeaplastida
Excavata
SAR
CCTH/Hacrobia

Question 2

What is the unifying feature of the Opisthokonts?

Answer 2

Flagellated stages, mainly located towards the back, with some exceptions pointing forward

Question 3

Vertebrates and Invertebrates belong to which group?

Answer 3

The Metazoan

Question 4

What is a Choanoglagellate?

Answer 4

sponge that contain cells that are virtually identical to them (choanocytes)
“multicellularity”

Question 5

What are Thecate cells an what is cool about them?

Answer 5

• Sessile choanoflagellates,
• can be colonial in form due to bacteria present,
• predecessor of multicellularity?

Question 6

Which organism has the actin basket around it?

Answer 6

Choanogflagellate

Question 7

Capsaspora: group? shape? characteristics?

Answer 7

Basal group relative to animals

• filose amoeboid cell
• symbiotic
• found in snails

Question 8

Icthyosporids: group? shape? characteristics?

Answer 8

Opistokont 
parasites, pathogen in fish
large multinucleated cells
chitin cell
lobose amoebae

Question 9

Unifying feature of the Fungi?

Answer 9

Chitin cell wall

lack of flagella

Question 10

Why do we love/hate Ascomycota?

Answer 10

its yeast:

• causes oral and vaginal infections :(
• makes bread and beer :)

Question 11

Microsporidia: group? characteristics?

Answer 11

• Fungi
• could be involved in AIDS,
• important pathogens of bees and silk worms

Question 12

What is weird about the Rozellids in regards to their unifying feature of the clade?

Answer 12

They have a flagellum (tubulin staining) !!

Question 13

What is another name for Rozellids?

Answer 13

Cryptomycota

Question 14

Which group redefines Fungi?

Answer 14

Rozellids

Question 15

What are the two defining features of the Amoeboza?

Answer 15

(1) Tubulinea: possession of tubular pseudopodia

(2) Unidirectional cytoplasmic streaming

Question 16

How do Amoebae move?

Answer 16

Through bulk cytoplasmic shifts and the formation of cell processes called PSEUDOPODIA

Question 17

Filose?

Answer 17

fine, thin pseudopods

Question 18

Loose?

Answer 18

thick, wide pseudopods

Question 19

State the organisms present in the amoebozoans from lecture: (5)

Answer 19

Amoeba, Chaos
A plasmodium
slime holds (mycetozoans)
Myxomycetes
Dictyostelids

Question 20

Mycetozoans are often confused to be classified as _______?

Answer 20

Fungi, there not saprophytic and are real predators of bacteria

Question 21

what are the two types of slime molds?

Answer 21

Plasmodial and Cellular

Question 22

mycetozoans can be unicellular T/F?

Answer 22

true

Question 23

Virdiplantae organisms and plastid? (2)

Answer 23

-Micromonas
-Volvox
green plastid

Question 24

Glaucophytes organisms and plastid?

Answer 24

glaucoystophytes and blue-green plastid

Question 25

What are the blue-green plastids called in glaucophytes?

Answer 25

Cyanelles

Question 26

Rhodoplantae organisms and plastid? (2)

Answer 26

Rhodoplastids, Cyanidiophytes: Cyanidium

Red algae: Bangiomorpha pubescens (old)

Question 27

What is different about cyanidium ?

Answer 27

has proteinaceous cell walls

colour: blue-green not red like its plastid

Question 28

what are the excavates?

Answer 28

amitochondriate, unifying feature the feeding groove,

Question 29

What is the excavate hypothesis?

Answer 29

previously archaezoans, implied that the ancestral eukaryote was excavate-like

Question 30

Which excavate group is capable of photosynthesis?

Answer 30

Euglenozoa

Question 31

Some euglenozoa are pathogenic, what are there names?

Answer 31

Leishmania

Trypanosoma

Question 32

What does cryptomonads translate to?

Answer 32

Hidden single cell

Question 33

Cryptomonas colourless forms were called?

Answer 33

Chilmonas