MGT 3200 Chapter : Chapter 02
Document Summary
Eukaryotes have greatest diversity of size: groups containing microscopic eukaryotes. Most grow hyphae: mycelium: branched mass of hyphae. Spread via air or water currents fuse to form zygote called zygospore. Arbuscular mycorrhizae: mutualistic association with plant roots. Candida (yeast that causes thrush and vaginal yeast infections) Morels & truffles (grow low to the ground; expensive) Cell wall made of glycoprotein or cellulose. Agar, agarose (purified form of agar), carrageenan: unicellular, filaments, or sheets. Porphyra- used to make nori for wrapping sushi. Algae engulfed by a protist: mixotrophs- combine phototrophy & heterotrophy. Aggregate to form aggregate to form fruiting body. Spores released from fruiting body: cercozoa shelled amoebas. Shells (tests) made of silica have holes for pseudopods to project from. Pseudopods stabilized with microtubules (makes them more needle-like) Multiple cilia or flagella (cilia made be used for feeding or movement; flagella is for motility: alveolates: ciliates. Stalked ciliates attach to surface: alveolates: dinoflagellates. Two long flagella: one wrapped around cell groove.
