G.3 Plant-like Protists Flashcards
Euglena
Genus of a single cell flagellate eukaryotes - tiny green unicellular organisms that use flagellum to move and live in fresh water
Eye spot
Heavily pigmented region in certain unicellular organisms that functions in light reception
Contractile protein
Protein that’s capable of shortening
Euglenoid movement
Crawling type movement by Euglena when there’s not enough water for swimming
Algal bloom
Rapid increase in algae population of freshwater/ marine water systems
Holdfasts
Root-like anchoring structure of algae
Stipes
Stem-like structure of algae
Blades
Photosynthetic structures of algae (analogous to leaves of a terrestrial plant)
Dinoflagellate
Bearing two dissimilar flagella and having characteristics of both plants and animals
Bioluminescent
Able to emit light (some dinoflagellates, specifically in Phylum Pyrrophta can do this)
Diatoms
Common name for members of Phylum Chrysophyta
Diatomaceous earth
Fine, particulate soil made from the cell wall deposits of diatoms
Phycobilin
Water-soluble pigment found in red algae and Cyanobacteria (can absorb light)
Fucoxanthin
Pigment molecule in brown algae which transfers sunlight energy into chlorophyll for photosynthesis
Colonial
Living as a colony
Filamentous
In the form of very long thin rods
Thallus
An undifferentiated plant/ algal- like growth (i.e. Ulva)
Chlamydomonas
Genus of green algae, consisting of around 150 species of unicellular flagellates which have eyespots
Volvox
Genus of about 20 species of freshwater algae
Daughter colonies.
Secondary colonies growing on the surface of older colonies
Spirogyra
Genus of common fresh water alga with filamnetous body forms
Ulva
“Sea lettuce,” genus name of a type of marine “leafy” green algae
Alternation of generations
Adaptive feature of less evolved organisms allowing them to capitalize on the advantages of both sexual and asexual reproduction
