Chapter 1 - Intro Flashcards
the distinguishing feature of parabasalids is
the possession of undulating membrane used in locomotion in addition to flagella used in propelling themselves
the sub group of excavata that possesses one nuclei per cell and possess hydrogenosome is ……
PARABASALIDS
G.intestilais is under the sub and super group…..
Diplomonads,Excavata
Excavata are characterized by…….
Presence of an excavated feeding groove one on side of the body
Which sub group of excavta makes it impossible to differentiate BETWEEN plant and animal protists
EUGLENOZOA
WHICH sub group of excavata possess rod or crystalline structure in their flagella
EUGLENOZOA
TRICHOMONAS VAGINALIS is under which sub group
PARABASLIDS
MITOSOMES is found in
DIPLOMONADS
……are thin filamentous cell extensions supported by a central axis of microtubules
AXOPODIA
……..broad and blunt cell with both endoplasm and ectoplasm
LOBOPODIA
WHAT makes G.intestinalis inhabit the intestine of mammals
lack of characteristics surface groove
which super group possess posterior directed flagella
EXCAVATA
HOW MANY SUPER GROUPS DOES EUKARYA HAS
6
What is a kinetoplast in kinetoplastids?
A kinetoplast is an organized mass of DNA located within the single, large mitochondrion of kinetoplastids.
Name a kinetoplastid that causes sleeping sickness in humans.
Trypanosoma brucei causes sleeping sickness in humans.
How is sleeping sickness transmitted, and where is it prevalent?
Sleeping sickness is transmitted through the bite of a tsetse fly (Glossina spp.) and is prevalent in rural areas of Africa.
Which kinetoplastid causes Chagas disease, and how is it transmitted?
Trypanosoma cruzi causes Chagas’ disease, transmitted by “kissing bugs” (Triatominae).
In which regions is Chagas’ disease common, and who is most severely affected?
Chagas’ disease is common in Central and South America. Acute cases are most severe in children under five years old.
How is leishmaniasis transmitted, and where is it prevalent?
Leishmaniasis is transmitted by sand flies (Phlebotomus and Luzomyia) in Africa, Asia, Central America, and South America.
What happens to beaches during a red tide in areas where filter-feeders are
harvested?
They are closed until clams, mussels, or oysters digest all the consumed dinotlagellate toxins.
