| A | B |
| Accessory Pigment | Compound other than chlorophyll that absorbs light energy and passes it on to the primary photosynthetic pigment |
| Alternation of Generations | The switching back and forth between the production of diploid and haploid cells |
| Colony | Group of cells that are joined together and show few specialized structures |
| Egg | Female gamete |
| Filament | In a plant, the long, thin structure that supports the anther. In algae, a thread like colony farmed by many green algae |
| Gametophyte | Haploid plant that produces gamete |
| Heterogamy | Production of two different kinds of gametes within the same species |
| Holdfast Cell | Specialized cell that attaches an algal filiment to the bottom of a lake or pond |
| Isogamy | Condition in which with gametes of a species appear identical |
| Sperm | Male gamete |
| Sporophyte | Diploid plant that produces spores |
| Syngamy | The fusing of algal gametes |
| Zoospore | Haploid cell involved in asexual reproduction in algae |