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lecture 3 exam 2
na
14
Bible Studies
Post-Graduate
10/10/2012

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Cards

Term
Sporogony 
Definition

zygote form into sporozoites

            Example: eimeria life cycle 

Term
Sporocyst 
Definition

cysts inside the oocysts that contains sporozoites

            Example: Toxoplasma oocysts contains 2 sporocysts that contain 4 sporozoites each

Term
Sporulation 
Definition

develop sporocysts and sporozoites

            Example: Toxoplasma gondii unsporulated when pooped by cat, but sporulation develops sporocysts and sporozoites in environment

Term

Self-limiting infection - 

Definition
Term

Coprophagy - 

Definition
Term
Tachyzoite 
Definition

acute stage of toxoplasma in rodent, same thing as merozoite

-       infect other cells

-       tachyzoites form into bradyzoites

Example: toxoplasma tachyzoites in rats and humans

Term
Bradyzoite 
Definition

 chronic stage of toxoplasma, slowly developing, active in tissue

- toxoplasma stage transmitted into cats

            Example: Cat eats rodent tissue with bradyzoite and gets infected with toxoplasma

Term
Latent infection - 
Definition
Term
Infection immunity 
Definition
Premunition 
Term
Vertical transmission 
Definition

transfer pathogen from mother to child

            Example: Toxoplasma transfers mother to fetus

Term
Horizontal transmission 
Definition

transfer pathogen from one animal to another independent of parent relationship

            Example: Human eats raw meat and infected with toxoplasma

Term
Rhoptries & Micronemes 
Definition

organelles within apicoplasts that release substance to liquefy cell membrane to parasite can enter host

            Example: Toxoplasma apicoplasts align along cell wall to create parasitophorous vacuole for parasite to enter

Term
Parasitophorous vacuole 
Definition

vavuole created by parasite so it can enter cell

            Example: toxoplasma creates pore using apicoplasts

Term
Apicoplast 
Definition

organelles (rhoptries and micronemes) essential for parasite to infect host cell

- evolved from chloroplasts blue green algae

Example: toxoplasma apicoplasts release substance the liquiefy host cell membrane creating parasitophorous vacuole so parasite can enter cell

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