ANIMAL-LIKE PROTISTS

flagellum

a long, whiplike tail, used by certain Protozoa for locomotion

cyst

a protective capsule occupied by Protozoa during unfavorable conditions of environment

motile

able to move

calcium carbonate

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

pellicle

What structure is responsible for maintaining the consistent shape of 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?

apical complex

a cell structure found only in parasitic species of the phylum Apicomplexa; important for interaction with and entry into host cells

conjugation

a kind of reproduction in which two unicellular organisms unite temporarily to exchange nuclear material and then separate

cytoplasmic bridge

a temporary thin strand of cytoplasm connecting two microorganisms during conjugation through which structure genetic material may be passed between the cells

food vacuole

a vacuole in which food particles are digested by enzymes

contractile vacuole

a vacuole, found in some cells, that collects water and expels it from the cell

cytoplasm

all the material inside a cell membrane except the nucleus

taxis

an organism's response to a single stimulus

chemotaxis

an organisms response to the presence of chemicals in its surroundings

longitudinal binary fission

asexual reproduction in which the parent organism divides lengthwise to form two daughter cells which are mirror-images of each other

anal pore

structure that paramecium use to remove wastes

radiolarian

the common name of amoeboid protozoans of the phylum Foraminifera which is characterized by tiny shell-like structures composed of silicon

gullet

the deepest part of the oral groove where food vacuoles are formed around a food particle

Protozoa

the phylum comprising unicellular organisms in protista kingdom

Rhizopoda

the phylum of amoeboid protozoans

Actinopoda

the phylum of amoeboid protozoans which have a tiny shell-like structure composed of calcium carbonate

Foraminifera

the phylum of amoeboid protozoans, commonly called radiolarians, which have a tiny shell-like structure composed of silicon

Apicomplexa

the phylum of parasitic spore forming protozoans which are not motile during most of their life cycle

Ciliophora

the phylum of protozoans with hair-like structures called cilia, the species of which phylum are commonly known as ciliates

Zoomastigophora

the phylum of protozoans, commonly known as flagellates, with whip-like structures called flagella

homeostasis

the self-regulating exchange of water, dissolved materials, and dissolved gases between a cell and its surroundings

Each paramecium has two nuclei.

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

entry and interaction either the host cell

What is a know function of the apical complex?

pellicle

A firm, flexible coating outside the plasma membrane

binary fission

A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size

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:

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 form 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 and inside other organisms

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

True

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

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 __________.

pseudopodium

false feet

cilia

hairlike bits of protoplasm that project from certain kinds of cells for locomotion or feeding

oral groove

indentation of the pellicle of a Paramecium that opens to the gullet

amoeboid movement

movement by altering the consistency of cytoplasm so that it flows to create pseudopodia

phototaxis

organisms response to the variability of light in its surroundings

phagocytosis

process of enclosing food particles by the cell-membrane to form an internal food vacuole