Ch 12 Eukaryotes

Question 1

Draw the life cycle of plasmodium vivax

Answer 1

draw it

Question 2

List some representative pathogenic protozoa

Answer 2

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

Question 3

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

Answer 3

100 of 100,000

Question 4

What breaks down cellulose?

Answer 4

Fungi

Question 5

What is the cause of AIDS patients’s deaths?

Answer 5

Fungi

Question 6

What is mycorrhizae?

Answer 6

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

Question 7

What is the study of fungi called?

Answer 7

Mycology

Question 8

How do asexual fungi reproduce?

Answer 8

Mitosis

Question 9

Differentiate yeast from bacterial

Answer 9

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

Question 10

What does dimorphic mean?

Answer 10

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

Question 11

What does schizosaccharomyces mean?

Answer 11

Fission (little pieces) yeast

Question 12

What does hyphae mean?

What is a characteristic of fungal hyphae?

Answer 12

Branching filaments.

Skeleton fingers

Question 13

What are the largest organisms on earth?

Answer 13

Fungus

Question 14

How do you know if something reproduces sexually?

Answer 14

Diversity in offspring

Question 15

What is a mycosis?

Answer 15

Fungal infection

Question 16

Differentiate systemic mycoses from subcutaneous mycoses.

Answer 16

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

Question 17

What is an opportunistic pathogen?

Answer 17

Needs weakened immune system

Question 18

What is a trophozoite?

Answer 18

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

Question 19

What is a protist?

Answer 19

Include the protozoans, most algae, and often some fungi

Question 20

Does a paramecium have sexual or asexual reproduction?

Answer 20

Sexual

Question 21

What is a paramecium?

Answer 21

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.

Question 22

What does encystment mean?

Answer 22

Allows parasitic organism to survive outside host.

Question 23

What is a pellicle?

Answer 23

Protective skin requires an alimentary canal

Question 24

What two things do cillias do?

Answer 24

motion and directing food

Question 25

Why is phylum archaezoa medically important?

Answer 25

Trichomonas vaginalis

Giardia lamblia

Question 26

What two things cause diarrhea?

Answer 26

Microsporidia

Cryptosporidium

Question 27

Which phylum cause dysentery?

Answer 27

Rhizopoda

Question 28

What is the definitive and intermediate host of malaria?

Answer 28

Definitive-mosquito, sexual repro

Intermediate-man asexual repro

Question 29

Why phylum causes hemoflagellates and what is a hemoflagellate?

Answer 29

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

Question 30

What are two types of helminths?

Answer 30

Platyhelminth-flat worm, fluke

Nematodes-round worms, Ascaris

Question 31

Differentiate between parasitic worms and free living worms.

Answer 31

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