Quiz 2: Animal-like Protists

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calcium carbonate

What is the main component of the tiny shells of the members of the phylum Actinopoda?

pellice

What structure is responsible for maintaining the consistent shape of a paramecium?

unborn babies

Which group of humans is likely to experience the most devastating symptoms of toxoplasmosis?

flagellum

Zooflagellates move by means of a whip-like structure called:

engulfed by the cell membrane, food vacuole

During phagocytosis, food particles are __________ and then digested in the __________.

Four new protozoans are created.

What is the final result of protozoan conjugation?

Cilia, moving food toward the oral groove of the organism

________________ are tiny hair-like structures on the outer surface of some protozoans that are used for motility and for ___________________________________________.

Trypanosoma cruzi

triatomine bug

Trypanosoma

tsetse fly

Giardia lamblia

water-borne cysts

Each paramecium has two nuclei.

What characteristic makes the cell of a paramecium exceptional compared to other eukaryotic cells?

entry and interaction with the host cell

What is a known function of the apical complex?

True

All eukaryotic cells contain a nucleus and a cytoplasm.

True

All species of the phylum Apicomplexa are parasitic.

motility and phagocytosis

Amoeboid protists use their pseudopodium for:

Fourth

Anal Pore

Third

Cell Cytoplasm

dysentery, houseflies, severe diarrhea

Entamoeba histolytica is an amoebic protozoan which is responsible for a disease known as amoebic _____________ . Cysts formed by Entamoeba histolytica can live outside the human body and may contaminate water or be carried by _______________ . Symptoms include _______________ which can lead to death if not treated.

Second

Gullet

They regulate water intake and excretion.

How do contractile vacuoles help a cell with homeostasis?

It creates daughter cells that are mirror images of each other.

How does longitudinal binary fission differ from other forms of binary fission?

the protozoan's living conditions deteriorated

If scientists noted that a protozoan developed a cyst, they could safely assume that:

fresh water lakes inside other organisms

In what locations does this text suggest you might find zooflagellates living?

True

Insect vectors can carry disease-causing organisms on their legs or mouthparts.

First

Oral Groove

symbiotic

Termites and Trichonympha have a ______________ relationship.

malaria

The Anopheles mosquito is the insect vector for _________.

True

The common name for foraminifers is radiolarians.

protozoans

The general name for all animal-like protists is

Leishmania donovani

phlebotimine sand fly


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