Protist Jeopardy

Protists Basics

100

These organisms are mostly unicellular and have a nucleus and membrane-bound organelles 

What are protists?

200

Protists are not a formal kingdom because they are not this type of evolutionary group

What is monophyletic

300

Protists that can obtain energy without oxygen 

What are anaerobes 

400

Protists that can photosynthesize and consume food are called this 

What are mixotrophs

500

What type of term is used to describe protist's evolutionary tree 

What is unrooted 

Supergroups

100

Excavata, SAR, Archaeplastida, and what group make up the four supergroups?

What is Unikonta (Amorphea) 

200

What supergroup includes red and green algae

What is Archaeplastida ?

300

The SAR consists of these three clades

What is Stramenopiles, Alveolates, and Rhizarians 

400

The phylogeny of this supergroup is heavily based on molecular data and is not rooted 

What is Unikonta (Amorphea)

500

This supergroup shows evidence of secondary endosymbiosis occurring multiple times? 

What is SAR

unnamed

300

Dinoflagellates moving using how many flagella 

What is two 

500

1/3 of their genome is dedicated to changing surface proteins each generation 

What is 'bait-and-switch'

Disease and Drama

100

Which reduced mitochondrial diplomonad causes intestinal infections

What is giardia intestinalis 

200

Which kinetoplastid causes sleeping sickness and Chagas disease 

What is trypanosoma

300

This entamoeba species causes amebic dysentery 

What is entamoeba histolytica 

400

What parabasalid infects 5-8 million people per year in North America

Tichomonas vaginalis

500

This dinoflagellate species is associated with fish kills

What is Pfiesteria shumwayae 

Life Cycles

100

Name 2 Cycles in the Protists Lesson

The Host Life Cycle of Plasmodium

The cycle of Plasmodial Slime Mold or Cellular Slime Mold

200

What type of life cycle does Chlamydomonas have?

Chlamydomonas has a haplontic life cycle.

• The main (dominant) stage of the organism is haploid (n).

• The only diploid (2n) stage is the zygote.

• The zygote undergoes meiosis to produce haploid cells.

• There is no alternation of generations.

300

What are the differences between the Plasmodial Slime mold and Cellular Slime Mold Cycles?

• Structure: Plasmodial is one large, multinucleate cell. Cellular is an aggregation of individual cells.
• Ploidy: Plasmodial is largely diploid (during feeding), while cellular is largely haploid.

400

Why is the life cycle of Plasmodium described as digenetic?

The life cycle of Plasmodium is described as digenetic because it requires two different hosts to complete its life cycle.

• In humans (intermediate host):

  • Asexual reproduction (schizogony) occurs in the liver and red blood cells.

  • Symptoms of malaria appear during this stage.

• In the female Anopheles mosquito (definitive host):

  • Sexual reproduction occurs.

  • Gametes fuse to form a zygote.

  • The parasite develops into sporozoites, which are transmitted to another human.

500

Why is the plasmodium considered a single cell despite containing thousands of nuclei?

1:It has a continuous cytoplasm

All the nuclei share the same cytoplasm. There are no cell walls or membranes dividing them into separate cells.

2:It has one plasma membrane

The entire plasmodium is enclosed by one outer cell membrane, making it structurally one giant cell.

3:It forms by repeated nuclear division without cytokinesis

The nuclei divide many times, but cytokinesis (cytoplasmic division) does not occur.
This results in a multinucleate coenocytic cell.

4:Coordinated functioning

All nuclei divide synchronously and function together, behaving as part of a single organismal unit.