1 | P a g e Microbiology Chapter 5 UTA Tholen Correctly Answered Questions | UpToDate | Already Graded A+ Eukaryotic Microbes 🗸🗸🗸 : Extremely diverse; Different life cycles & reproduction modes; Many morphologically specialized structures; Specialized nutritional needs Eukaryotic groups 🗸🗸🗸 : protozoa, helminths, fungi, algae, and lichens Protozoa 🗸🗸🗸 : Wide variety of unicellular, nonphotosynthetic, motile eukaryotic microbes, Not a formal taxa group Protozoa Life Stages 🗸🗸🗸 : Trophozoites - feeding & growth stages; Cysts - encapsulated stage to protect against harsh environments Protozoa Reproduction 🗸🗸🗸 : ITS BOTH ASEXUAL AND SEXUAL; asexual - binary fission, budding, or schizogeny; Sexual - fusing of 2 | P a g e haploid gametes (syngamy) or conjugation (diffe rent from bacteria) Protozoa Cell Structures 🗸🗸🗸 : Plasmalemma - protozoan membrane; Pellicle membranes with bands of protein to provide rigidness; Shape is created by ectoplasm or endoplasm Protozoa Feeding Structures 🗸🗸🗸 : Cytostome - taking up food/nutrients; Cilia sweep food towards openings; Holozoic protists -take in whole particles; Saprozoic protists -take in smaller molecules Protozoa Locomotion 🗸🗸🗸 : pseudopods, flagella, cilia Protozoa Unique Organelles 🗸🗸🗸 : Contractile vacuoles - help regulate osmotic pressure; Mitochondria may be absent or modified with; Kinetoplast DNA bundles located by basal body of flagella OR Hydrogenosomes to produce ATP without O2 Protozoan Taxonomy 🗸🗸🗸 : Ameobozoa, Excavata Chromalveolata Ameobozoa
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