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Question 1

key feature of protists

Answer 1

polyphyletic group
occur in free water is avalible
single celled
locomotion

Question 2

methos of locomotion

Answer 2

flagella, pseudopods, lilia

Question 3

how do protists reproduce

Answer 3

asexual via binary fission and mutliple fission
sexual via syngamy (union of two gamtetes and conjugation

Question 4

define polyphyletic

Answer 4

many origions

Question 5

list the taxonomic groups of protists

Answer 5

Rhizarians
Amoebozoans
Red algae
Green algae
Excavates
Euglenozoans
Alveolates
Stramenopiles (chromists)

Question 6

how do protists eat

Answer 6

photosynthesis
absorption
predation

Question 7

describe diplomonads

Answer 7

An Excavate
Single celled with two nuclei
Example: Giardia -these can cause diarrhoea and fatigue.

Question 8

Describe parabasalids

Answer 8

An Excavate
Anaerobic with no mitochondria.
Example: trichomonas - infects both men and women and is an STI.

Question 9

describe Euglena

Answer 9

Some are heterotrophs (via osmotrophy), many are photosynthetic (autotrophs)

Question 10

describe Kinetoplastids

Answer 10

an Euglenozoan
Kinetoplastids generally have flagella, some are free living, some are parasitic and are important disease agents.
Example: Trypanosoma - African sleeping sickness is an insect borne parasitic disease of humans and animals. The protozoan is transmitted by the bite of the tsetse fly. This fly is the host and vector.

Question 11

describe Stramenopiles

Answer 11

Variable nutrition modes (photosynthetic, heterotrophic. Variable cellularity (uni and multicellular) water nodes, diatoms and brown algae
Example: P. cinnamomi - pathogen which is endangering native species (Wollemi Pine) around coastal Australia.

Question 12

describe the life history of the apicomplexan Plasmodium

Answer 12

Malaria history - the life cycle rotates between humans and mosquitoes. The human is infected and the parasite enters the liver and undergoes mitotic reproduction causing the liver cells to rupture and merozoites are released. And then the cells invade blood cells to undergo an intraerythrocytic cycle.The merozoite produces gametocytes which mosquitoes ingest when biting humans. The Gametocytes mate and undergo meiosis; the result migrates through the midgut wall and forms oocyst which allow sporozoites to develop and infect a human when they are bitten.

Question 13

List representative organism of apicomplexans

Answer 13

Plasmodium spp (malaria): these hold small chloroplast, the drug(doxycycline) targets chloroplast and thus does not harm humans and effectively eliminates the parasite.

Question 14

Translate:
Ripping Ass Rudely Gets Everyones Excited Sexy Ass

Answer 14

Rhizarians, Amoebozoans, Red algae, Green Algae, Excavates, Euglenozoans, Stramenopiles, Alveolates

Question 15

Example of Amoebozoans

Answer 15

Amoebas
Slime moulds

Question 16

Example of Excavates

Answer 16

Parabasalids causes Trichomonas (STI)

Question 17

Example of Euglenozoans

Answer 17

Kinetoplastids: Trypanosoma
African sleeping sickness is an insect borne parasitic disease of humans and animals.

Question 18

Example of Stramenopiles

Answer 18

Water moulds (Oomycetes)
Diatoms
Brown algae (seaweeds)

Question 19

Example of Alveolates

Answer 19

Malaria (apicomplexans)
Causal agent is Plasmodium spp spread by the Anopheles mosquito.