Ch 12 Eukaryotes Flashcards Preview

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Flashcards in Ch 12 Eukaryotes Deck (31):
1

Draw the life cycle of plasmodium vivax

draw it

2

List some representative pathogenic protozoa

Phylum-Pathogens-Disease
Diplomonads-Giardia-Giardia
Parabasalids-Trichomonas vagalis-Vaginitis
Euglenozoa-Leishmania-Leishmaniasis
Amoebozoa-Acanthamoeba-Keratitis
Apicomplexa-Plasmodium-Malaria

3

How many species of fungi are there and how many are pathogenic to humans?

100 of 100,000

4

What breaks down cellulose?

Fungi

5

What is the cause of AIDS patients's deaths?

Fungi

6

What is mycorrhizae?

A fungus that grows in association with the roots of a plant in a symbiotic or mildly pathogenic relationship.

7

What is the study of fungi called?

Mycology

8

How do asexual fungi reproduce?

Mitosis

9

Differentiate yeast from bacterial

YEAST BACTERIA
Low pH-High pH
Anaerobic-Aerobic
Low moisture-High moisture
Low nitrogen-High nitrogen
Nucleus-No nucleus

10

What does dimorphic mean?

Two different looks
Mold-like at 25 C.
Yeast-like at 37 C.

11

What does schizosaccharomyces mean?

Fission (little pieces) yeast

12

What does hyphae mean?
What is a characteristic of fungal hyphae?

Branching filaments.
Skeleton fingers

13

What are the largest organisms on earth?

Fungus

14

How do you know if something reproduces sexually?

Diversity in offspring

15

What is a mycosis?

Fungal infection

16

Differentiate systemic mycoses from subcutaneous mycoses.

Systemic - deep within the body, soil fungi, inhalation portal of entry
Subcutaneous -beneath skin, saprophytic (soil/vegetation) fungi, puncture portal of entry

17

What is an opportunistic pathogen?

Needs weakened immune system

18

What is a trophozoite?

A growing stage in the life cycle of some sporozoan parasites, when they are absorbing nutrients from the host.

19

What is a protist?

Include the protozoans, most algae, and often some fungi

20

Does a paramecium have sexual or asexual reproduction?

Sexual

21

What is a paramecium?

A single-celled freshwater animal that has a characteristic slipper-like shape and is covered with cilia. Large enough to be seen with the naked eye.

22

What does encystment mean?

Allows parasitic organism to survive outside host.

23

What is a pellicle?

Protective skin requires an alimentary canal

24

What two things do cillias do?

motion and directing food

25

Why is phylum archaezoa medically important?

Trichomonas vaginalis
Giardia lamblia

26

What two things cause diarrhea?

Microsporidia
Cryptosporidium

27

Which phylum cause dysentery?

Rhizopoda

28

What is the definitive and intermediate host of malaria?

Definitive-mosquito, sexual repro
Intermediate-man asexual repro

29

Why phylum causes hemoflagellates and what is a hemoflagellate?

Any parasitic flagellate protozoan that lives in the bloodstream. Often fly vector.

30

What are two types of helminths?

Platyhelminth-flat worm, fluke
Nematodes-round worms, Ascaris

31

Differentiate between parasitic worms and free living worms.

PARASITIC - FREE LIVING
Lack digestion sys-Have digestion sys
Minimal nervous sys-Have nervous sys
Minimal locomotion-Have locomotion