Protists, Fungi, and Plants Flashcards
any of a diverse taxonomic group and especially a kingdom (Protista syn. Protoctista) of eukaryotic organisms that are unicellular and sometimes colonial or less often multicellular and that typically include the protozoans, most algae, and often some fungi (as slime molds)
Protist
an organism deriving its nutritional requirements from complex organic substances.
Heterotroph
an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus
Eukaryote
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Decomposer
an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host’s expense
Parasite
an animal or plant on or in which a parasite or commensal organism lives
Host
any of a group of unicellular, multicellular, or syncytial spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools.
Fungi
a minute, typically one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans.
Spore
a simple slow-growing plant that typically forms a low crustlike, leaflike, or branching growth on rocks, walls, and trees.
Lichen
a plant that is characterized by the presence of conducting tissue.
Vascular plant
plants without a vascular system (xylem and phloem)
Nonvascular plant
a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo.
Gymnosperm
a plant that has flowers and produces seeds enclosed within a carpel. The angiosperms are a large group and include herbaceous plants, shrubs, grasses, and most trees.
Angiosperm
he process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
Photosynthesis
what cells do to break up sugars into a form that the cell can use as energy
Cellular respiration