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Flashcards in Unit 2 Deck (168)
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1

True or false: Trichomonas have modified mitochondria

True

2

The Plasmodium pictured is in what stage of its life cycle

Trophozoite

3

Explain why Protista is no longer recognized as a formal taxonomic group

Protistans can be found scattered throughout other Phyla and is considered more of a paraphyletic group.

4

Can be found in the water column

Pelagic

5

This organism belonging to Class Trypanosomatidea is a cutaneous pathogen that is transmitted through sand flies

Leishmania

6

Do any Prokaryotes have Flagella?

Yes, but not all have. They are made of flagellin and are composed of 3 parts: Basal body, Hook, and Filament.

7

Chromatin condenses, the nuclear envelope dissolves, centrioles (if present) divide and migrate, kinetochores and kinetochore fibers form, and the spindle forms.

Prophase

8

specialized archeocytes that form spicules

Sclerocytes

9

Chromalveolata is a subgroup of Eurkaryotes that is a super group to which 3 groups of Protista

Dinophyta

Apicomplexa

Ciliophora

10

Do any Eukaryotes have Flagella?

Yes, but not all have. They are made of microtubules and are found in pairs; 9 pairs around a central pair called 9+ 2 fashion.

11

Trichomonas belong to what Kingdom, Phylum and Class

Kingdom Protista

Phylum Axostylata

Class Parabasalea

12

These organisms have what type pseudopodia

Reticulopodia

13

This ultrastructual feature functions in host cell penetration and is made up of a conoid, polar rings and rhoptries

apical complex

14

This parasite feeds on the intestinal epithelium

Giardia

15

What organism is pictured

Trypanosoma

16

Feeding cell found in Phylum Poriferan

Choanocyte

17

Do any Prokayotes have pilus?

Yes, only in Gram Negative bacteria. It acts as a bridge to transfer genetic material.

18

Excavata is a subgroup of Eurkaryotes that is a super group to which 3 groups of Protista

Parabasalea

Diplomonadida

Euglenozoa

19

What is the function of Amoebocytes

They move by pseudopodia to redistribute nutrients to other cells

20

In Phylum Euglenozoa name one organism that is free living and one organism that is parasitic

Free living - Euglena

Parasitic - Trypanosoma

21

What are the three basic body types of a Poriferan

Asconoid

Syconoid

Leuconoid

22

Body form with even more folding, more and smaller choanocyte chambers, spongocoel essentially nonexistent, has excurrent canals instead

Leuconoid

23

True or False: Giardia are unicellular and flagellated

True

24

What is one defining feature of Phylum Axostylata

Axostyle

(cytoskeletal element)

25

Parasite vector that requires transmission through biting. The parasite requires this vector to complete part of its lifecyle

Biological vector

26

Identify this genus and what phylum it belongs to

Trichomonas

Phylum Axostylata

27

What are the 5 different types of pseudopodia

  1. Lobopodia
  2. Axopodia
  3. Filipodia
  4. Reticulopodia
  5. Rhizopodia

28

Identify this genus and what phylum it belongs to

Trypanosoma

Phylum Euglenozoa

29

The Plasmodium pictured is in what stage of its lifecycle

Ookinetes

30

Trypanosoma is a blood parasite that causes what disease

East/West African sleeping sickness