23 terms

Protista: Euglena, Amoeba, Paramecium, Volvox

Protozoans
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protist
Kingdom composed of eukaryotes that are not classified as plants, animals, or fungi
euglena
has a red eyespot it uses to locate light; can make their own food (autotroph) or eat other things like green algae; sort of a combination plant and animal; swims with a single flagellum and preys on on amoeba and paramecium; reproduces asexually by binary fission (splits in half); has a gullet
amoeba
moves and eats by using pseudopods; eats algae, bacteria other protozoans, and tiny particles of dead plant or animal matter- "cytoplasmic stretching"
paramecium
most common protozoan; has a slipper-like shape; uses hair-like cilia to beat food into a deep oral groove/gullet; food is then stored in a food vacuole and later pushed out through an anal pore; moves by spiraling through water
volvox
live in colonies which is like a hollow ball with 500 to 20,00 individual cells; can produce its own food with chloroplasts using photosynthesis and eats algae and plants; has eyespots on northern region; each single one has 2 flagella
cilia
tiny hairs that cover the outside of paramecium; used for locomotion (movement) and for gathering food into an oral groove
flagella
long hair-like structures used for movement; found in both euglena and volvox. Euglena has one flagellum. Volvox - each has 2 flagella.
pseudopod
made by stretching out cytoplasm, called "false feet", this helps the amoeba move and capture and ingest its prey
mitosis
Cell division; both euglena and amoeba reproduce this way.
gullet
where a paramecium and a euglena both collect and digest their food
photosynthesize
Ability of plant-like protists to converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight.
locomotion
Movement; protists use either cilia, flagellum and pseudopods for movement
heterotroph
An organism, like an amoeba, that cannot make its own food. A euglena has this trait, along with being autotrophic.
autotroph
An organism that makes its own food
sexual reproduction
A reproductive process that involves two parents that combine their genetic material to produce a new organism
asexual reproduction
A reproductive process that involves only one parent and produces offspring that are identical to the parent; i.e. binary fission, fragmentation, and budding. Yeast reproduces by budding.
eukaryotic
A type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles. Examples of organisms with these cells are protists, plants, fungi, and animals.
prokaryotic
A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found only in the domains Bacteria and Archaea.
binary fission
A form of asexual reproduction in which one cell divides to form two identical cells.
oral groove
where a paramecium takes in food
eyespot
structure used to detect light in both euglena and volvox
cytoplasm
the fluid inside the cell
bi-flagellate autotroph
two flagellum; makes its own food; a volvox is an example