Kingdom Protista Flashcards
1
Q
Kingdom Protista
A
- oldest kingdom where animal is derived from
- polyphyletic: common ancestor is not a member of kingdom Protista
- the goal is to increase a monophyletic group – ancient ancestor is a member of kingdom
- However, we still use it b/c it’s easier not to change
2
Q
Phylum Euglenozoa
A
- unicellular
- uses flagella
- some are photosynthetic, predators, parasitic
- single nucleus
- asexual reproduction (fission)
- e.g. Euglena – photosynthetic & motile, has senses, eyespot is sensitive to light
- if photosynthetic, show positive phototaxis (senses light & orients towards it)
- e.g. Trypanosomatidea
3
Q
Phylum Viridiplantae
A
- e.g. Volvox
- flagellated
- colonial → communicate via cytoplasmic bridges
- colonies inside colonies are daughter communities
- photosynthetic
- reproduction
- in the fall season: they do sexual reproduction (make sure genotypes are good)
- some colonies/individuals monoecious: have male/female in same colony
- some colonies/individuals dioecious: only male or female parts
- spring/summer: asexual reproduction
- more sunlight is beneficial
4
Q
Phylum Amoebozoa
A
- pseudopods
- predators or parasitic
- lack mitochondria
- single nucleus
- asexual reproduction
5
Q
Phylum Dinoflagellata (caused red tide)
A
- flagella
- some photosynthetic, some predators
6
Q
Phylum Apicomplexa
A
- parasitic
- has complex lifecycle (look at it)
- female mosquito need to suck blood to generate eggs
- in her saliva is anti-coagulant, anesthetic (numbing, so not detected)
7
Q
Phylum Apicomplexa
life cycle
A
8
Q
Phylum Ciliophora
A
- cilia
- 2 nuclei
- very fast – b/c of rigid body in water
- pellicle: rigid structure that helps them maintain their shape
- hydrodynamic design: designed to travel quickly through water by breaking hydrogen bonds
- asexual or sexual? Reproduction (look at lifecycle)
- replicate micronuclues & trade them → integrate into macronucleus
- introduces genetic diversity
9
Q
Phylum Ciliphora
Life Cycle
A
