Ch 12 Eukaryotes Flashcards
Draw the life cycle of plasmodium vivax
draw it
List some representative pathogenic protozoa
Phylum-Pathogens-Disease Diplomonads-Giardia-Giardia Parabasalids-Trichomonas vagalis-Vaginitis Euglenozoa-Leishmania-Leishmaniasis Amoebozoa-Acanthamoeba-Keratitis Apicomplexa-Plasmodium-Malaria
How many species of fungi are there and how many are pathogenic to humans?
100 of 100,000
What breaks down cellulose?
Fungi
What is the cause of AIDS patients’s deaths?
Fungi
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?
Mycology
How do asexual fungi reproduce?
Mitosis
Differentiate yeast from bacterial
YEAST BACTERIA Low pH-High pH Anaerobic-Aerobic Low moisture-High moisture Low nitrogen-High nitrogen Nucleus-No nucleus
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?
Branching filaments.
Skeleton fingers
What are the largest organisms on earth?
Fungus
How do you know if something reproduces sexually?
Diversity in offspring
What is a mycosis?
Fungal infection
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?
Sexual
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?
Trichomonas vaginalis
Giardia lamblia
What two things cause diarrhea?
Microsporidia
Cryptosporidium
Which phylum cause dysentery?
Rhizopoda
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
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
