BIO 198 Module 6 Review Questions and Correct Answers

Red Algae rhodophytes -lack flagella -multicellular -tropical waters -terrestrial/freshwater environments -important food source/additive -ice cream, yogurt Agar type of red algae -vegetarian subsitute for gelatin -commonly used by microbiologists as solid subsrate to contain culture media in order to grow bacteria Green Algae most abundant group of algae -similar features to land plants -two types: chlorophytes/charophytes Charophytes type of green algae -closest living relatives to land plants -resemble them in morphology/reproductive stategies -wet habitats Chlorophytes type of green algae -exhibit diversity of form/function -freshwater/damp soil -common component of plankton Lichen -large range of colors/textures -survive in most unusual habitats -cover rocks, tree bark, ground in tundra -can survive periods of time of drought -mutualism -grow very slowly -extremely sensitive to air pollution Mutualism lichens -fungus lives in close contact with a photosynthetic organism, algae Thallus body of lichen -formed of hyphae wrapped around photosynthetic partner Soredia produced by lichens -clusters of algal cells surrounded by mycelia -dispersed by wind/water-form new lichens Challenges to Plants on Land 1. desiccation