Flashcards in Ch 12 Eukaryotes Deck (31)
Draw the life cycle of plasmodium vivax
List some representative pathogenic protozoa
How many species of fungi are there and how many are pathogenic to humans?
100 of 100,000
What breaks down cellulose?
What is the cause of AIDS patients's deaths?
What is mycorrhizae?
A fungus that grows in association with the roots of a plant in a symbiotic or mildly pathogenic relationship.
What is the study of fungi called?
How do asexual fungi reproduce?
Differentiate yeast from bacterial
Low pH-High pH
Low moisture-High moisture
Low nitrogen-High nitrogen
What does dimorphic mean?
Two different looks
Mold-like at 25 C.
Yeast-like at 37 C.
What does schizosaccharomyces mean?
Fission (little pieces) yeast
What does hyphae mean?
What is a characteristic of fungal hyphae?
What are the largest organisms on earth?
How do you know if something reproduces sexually?
Diversity in offspring
What is a mycosis?
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
What is an opportunistic pathogen?
Needs weakened immune system
What is a trophozoite?
A growing stage in the life cycle of some sporozoan parasites, when they are absorbing nutrients from the host.
What is a protist?
Include the protozoans, most algae, and often some fungi
Does a paramecium have sexual or asexual reproduction?
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.
What does encystment mean?
Allows parasitic organism to survive outside host.
What is a pellicle?
Protective skin requires an alimentary canal
What two things do cillias do?
motion and directing food
Why is phylum archaezoa medically important?
What two things cause diarrhea?
Which phylum cause dysentery?
What is the definitive and intermediate host of malaria?
Definitive-mosquito, sexual repro
Intermediate-man asexual repro
Why phylum causes hemoflagellates and what is a hemoflagellate?
Any parasitic flagellate protozoan that lives in the bloodstream. Often fly vector.
What are two types of helminths?
Platyhelminth-flat worm, fluke
Nematodes-round worms, Ascaris