Zoo 4234 - Study guides, Class notes & Summaries

Complements circulate freely in blood plasma. True or False? - True Name the three ways complements can be activated by - Classical pathway, alternative pathway, and lectin pathway. The lectin pathway occurs spontaneously. True or False? - False; it has to do with the cell wall polysaccharides of bacteria and fungi The classical pathway refers to the antigen-antibody complex. True or False? - True. Opsonization - makes pathogen "tasty" for phagocytic cells like macrophages and neutroph...

Virulence deals with the consequences of a parasite on the hosts _________. - Correct Answer-a) anatomy b) behavior *c) reproductive success* d) physiology e) all of the above Which of the following is not a characteristic of Platyhelminthes? - Correct Answer-a) most are parasitic b) dorsoventrally flattened c) triploblastic *d) pseudocoelomate* e) all of the above Which of the following is not a class belonging to the phylum Platyhelminthes? - Correct Answer-a) Turbellaria b) Mo...

Digenea female reproductive system - -ovicapt: sphincter muscle controls release of oocyte from ovary term-11 - Laurer's canal: vestigial vagina - Mehlis' gland: unicellular mucous and serous glands surrounding ootype - Ootype: expanded area of oviduct surrounded by Mehlis' gland - vitellaria: vitelline glands which produce bulk of shell material and yolk of the egg - Oogenotop: "egg forming apparatus" Characteristics of phylum Platyhelminthes... - *Flatworms* -Simplest bilaterally ...

Virulence deals with the consequences of a parasite on the hosts _________. - a) anatomy b) behavior *c) reproductive success* d) physiology e) all of the above Which of the following is not a characteristic of Platyhelminthes? - a) most are parasitic b) dorsoventrally flattened c) triploblastic *d) pseudocoelomate* e) all of the above

Parasitology - Study of the most common mode of life on earth - centered on animal parasites of humans, domestic animals, and wildlife parasite - an organism that lives in or on another organism (host) and either harms the host or lives at the expense of the host Why is parasitology important? - - parasite resistance - insecticide resistance - increased mobility (popularity in tropics and subtropics - migrations of refugees from war-torn areas - military service personnel coming from abr...

Complements circulate freely in blood plasma. True or False? True Name the three ways complements can be activated by Classical pathway, alternative pathway, and lectin pathway. The lectin pathway occurs spontaneously. True or False? False; it has to do with the cell wall polysaccharides of bacteria and fungi The classical pathway refers to the antigen-antibody complex. True or False? True.

Parasitology Study of the most common mode of life on earth - centered on animal parasites of humans, domestic animals, and wildlife parasite an organism that lives in or on another organism (host) and either harms the host or lives at the expense of the host Why is parasitology important? - parasite resistance - insecticide resistance - increased mobility (popularity in tropics and subtropics - migrations of refugees from war-torn areas - military service personnel coming from abroad ...

Which of the following will not increase the likelihood that Leucochlrodium variae is consumed by the definitive host? a) brightly colored broodsac b) snail beneath leaf litter c) pulsating broodsac d) snail on tree branches e) none of the above

What will an ant infected by Ophiocordyceps Unilateralis do once infected? 1. Ant will fall from tree canopy 2. Climbs again and permanently attaches its mandibles to the main vein of a leaf 3. Ant beings to grow stalk with the fruiting body and spores. Ophiocordyceps unilateralis infects ants via the _______ of the fruiting body and gets in the joint of the ants where it goes to the ________ stage Spores; yeast

Immunity includes a SYSTEMIC response; it is not restricted to the initial infection site. What is responsible for self vs. nonself recognition? - Major Histocompatibility complex (MHC) Which is not associated with MHC Class I proteins? A. Cytotoxic T cells (CD8) B. Endogenous antigens C. Found only on antigen presenting cells (APCs) - C. Found only on APCs