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Protists
Section 2
23
Biology
Undergraduate 2
10/16/2012

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Term
Diatoms
Definition
unicellular algae with a glassy cell wall (chromalveolates), carbon pump- a main source of oil
Term
Dinoflagellates
Definition
Red tide, produce a toxin that kills all the fish in an area
Term
Brown algae
Definition
Kelp forest
Term
Unikonts
Definition
Within this group organisms are separated into 2 clades: amoebozoans (protists) and animals / fungi
Term
Plasmodium
Definition
Single cell, multi-nucleus mass of cytoplasm, undivided by plasma membrane (Amoebozoans)
Term
Gymnamoebas
Definition
Free-living amoebas that keep growing until they can fully wrap themselves around food
Term
Protists
Definition
Eukaryotes that aren't plants, animals, or fungi
Term
Mixotrophy
Definition
Can use both autotrophy and heterotrophy, depending on the availability of light and nutrients
Term
Algae
Definition
A protist that produces its food by photosynthesis
Term
Nutrition: protozoans
Definition
heterotrophic, "animal-like"protist, eats bacteria and other protists
Term
Chloroplasts
Definition
Conduct photosynthesis (only in plant cells)
Term
Xylem tissue
Definition
Transports water and minerals from roots up to the "aerial parts" of plant, stronger walls than phloem
Term
Phloem Tissue
Definition
Transports food and nutrients from leaves to storage, organs, and growing parts of the plants. Can move bi-directionally
Term
Chromalveolata
Definition
Group of protists that contain diatoms, dinoflagellates, brown algae, water molds, and cilates
Term
Excavate
Definition
Group of protists, the name means hole, referring to a feeding grove in some members (lots of parasites) e.g. euglena and trynasoma (sleeping sickness)
Term
Hox Genes
Definition
Group of related genes (in animal cells) that determine the regional identity of an embryo. E.g. where the arms, legs, and head should go on a human. A mutation could cause an arm where a leg should be
Term
Plasmodium
Definition
Supercell, containing many nuclei, pulsing to distribute nutrients
Term
Phagocytosis
Definition
Engulfing food by wrapping themselves around it
Term
Gymnamoebas
Definition
Free-living amoebas, engulf food via phagocytosis
Term
Archaeplastids
Definition
Red algae, green algae, and land plants
Term
Meiosis
Definition
Takes the cell from diploid to haploid (required for sexual reproduction)
Term
Eukaryotes
Definition
Protists, fungi, plants, and animals
Term

Amoebozoans

Definition
Plasmodial supercell and cellular slime mold
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