| Term | Definition |
|---|
| one | the number of cells most protists are made of |
| chloroplast | the structure where photosynthesis takes place |
| photosynthesis | process by which sunlight is used to produce energy |
| binary fission | form of asexual reproduction used by single-celled organisms, resulting in two cells |
| conjugation | form of sexual reproduction where two organisms share their genetic information |
| producer | a protist, or organism, that makes its own food |
| decomposer | an organism that breaks down dead matter for its energy |
| parasite | an organism that invades another organism to get nutrients |
| host | an organism that is invaded by another organism for nutrients |
| heterotroph | an organism that must eat other organisms for its energy |
| green | the pigment color contained by all algae |
| phytoplankton | the protist that provides most of the world's oxygen |
| protozoans | mobile protists |
| cilia | tiny hairlike structures used for locomotion and feeding |
| micronucleus | structure that controls reproduction in ciliates |
| macronucleus | structure that controls the functions in ciliates |
| foraminiferans | protists with snail-like shells |
| flagella | whiplike structures on dinoflagellates |
| diatoms | protists that contain silica |
| mycorrhiza | a symbiotic relationship between a plant and fungus |
| lichen | an organism composed of fungus and alga |
| sac fungi | the largest group of fungi with sac-like structures called asci |
| club fungi | the group of fungi that mushrooms belong to, with club-like structures called basidia |
| mold | a fungus that is shapeless and fuzzy |
| budding | a type of asexual reproduction used by yeasts |
| hyphae | threadlike fungal filaments |
| fungi | eukaryotic heterotrophs with rigid cell walls and no chlorophyll |
| spore | a small reproductive cell that is protected by a thick cell wall |
| mycelium | a twisted mass of hyphae |
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