| A | B |
|---|
| seaweeds | Algae that has the size, colour, and appearance of plants. |
| Phylum Rhodophyta | Red Plants; Red Algae; contain chlorophyll a and phycobilins |
| phycobilins | Reddish accessory pigments that are especially good at absorbing blue light, allowing red algae to live deeper in the ocean. |
| Chondus chrispus | Irish moss, a common red alga; grows in tide pools and rocky coastlines. |
| coralline | Algae that plays an importnat role in the formation of coral reefs by helping to stabilize them. |
| Phylum Phaeophyta | Dusky Plants; Brown algae; chlorophyll a and c and fucoxanthin |
| fucoxanthin | a brown accessory pigment |
| holdfast | A structure that attatches alga to the bottom |
| stipe | Flattened stem-like structure |
| bladder | gas-filled swellings which keep the alga upright in water |
| blade | leaflike structures |
| kelp | A giant brown algae that can grow to more than 60 meters in length |
| Fucus | Brown alga; rockweed found along the rocky coast of the eastern United States. |
| Phylum Chlorphyta | Green algae; shares photosynthetic pigments and cell wall compositions with plants |
| Chlamydomonas | single-celled green alga that grows in ponds, ditches, and wet soil; 2 flagella and a chloroplast; |
| filament | long thredlike colonies; Spirogyra |
| Spirogyra | colonial green alga which colonize in filaments |
| Volvox | elaborate colonial green alga;500 to 50,000 cells that form spheres; attatched to one another by cytoplasm |
| Ulva | Sea Lettuce; multi cellular green alga that is commonly found along rocky seacoasts; two cells thick |
| Alternation of generations | The process in which many algae switch back and forth between haploid and diploid stages during their life cycles. |
| gametophyte | gamete-producing plants |
| zoospores | An asexual spore with a flagellum used for locomotion but lacking a true cell wall. |
| spore | haploid reproductive cells; |
| sporophyte | spore-producing organism (Ulva) |
| agar | A product created from seaweeds that thickens the nutrient mixtures scientists use to grow bacteria and other microorganisms. |
