23 Protists Classifications (HYP)

Question 1

What is the mnemonic to remember protists classification?

Answer 1

“All Adventurers Overcome Ruthless Challenges Easily.”

1. A → Archaeplastida (Red & Green Algae, Land Plants) 🌿
2. A → Amoebozoa (Amoebas, Slime Molds) 🦠
3. O → Opisthokonta (Animals, Fungi, Choanoflagellates) 🦁🍄
4. R → Rhizaria (Foraminiferans, Radiolarians) 🏖️
5. C → Chromalveolata (Diatoms, Brown Algae, Dinoflagellates, Apicomplexans) 🌊
    6. E → Excavata (Euglena, Trypanosoma, Giardia) 🔬

Question 2

What is the first -A- in the mnemonic?

Answer 2

“All” = Archaeplastida

(red & green algae, land plants)

Question 3

What is the second -A- in the mnemonic?

Answer 3

“Adventurers” = Amoebozoa

(Amoebas, slime molds)

Question 4

What is the first -O- in the mnemonic?

Answer 4

“Overcome” = Opisthokonta

(Animals, Fungi, Choanoflagellates) 🦁🍄

Question 5

What is the -R- in the mnemonic?

Answer 5

“Ruthless” = Rhizaria

(Foraminiferans, Radiolarians) 🏖️

Question 6

What is the -C- in the mnemonic?

Answer 6

“Challengers” = Chromalveolata

(Diatoms, Brown Algae, Dinoflagellates, Apicomplexans) 🌊

Question 7

What is the -E- in the mnemonic?

Answer 7

“Easily” = Excavata

(Euglena, Trypanosoma, Giardia) 🔬

Question 8

What are the key features of: Archaeplastida

Answer 8

photosynthetic protists
ancestors of plants
resulted from an endosymbiotic event b/t protist and cyanobacterium
ex: red & green algae, land plants

Question 9

What are the key features of: Amoebozoa

Answer 9

move using pseudopodia
free-living (Gymnamoebas) & parasitic forms (Entamoebas)
ex: amoebas, slime molds

Question 10

What are the key features of: Opisthokonta

Answer 10

includes animals, fungi and choanoflagellates (closest protist relatives to animals)
posterior flagella
ex: fungi, animals, choanoflagellates

Question 11

What are the key features of: Rhizaria

Answer 11

amoeboid with thin pseudopodia
crucial for carbon cycle (foraminiferans produce calcium carbonate shells)
fossil-forming protists (ridiolarians)
ex: Foraminiferans, radiolarians

Question 12

What are the key features of: Chromalveolata

Answer 12

diverse group
resulted from secondary endosymbiosis of red algae
subgroups: alveolates and stramenopiles (
ex: diatoms, brown algae, dinoflagellates

Question 13

What are the key features of: excavata

Answer 13

unicellular
feeding groove
many are parasitic
Subgroups: diplomonads, parabasalids, euglenozoans
ex: euglena, Trypanosoma, Giardia