BIO 3500 Oakland University Exam One Questions And Answers With Verified Solutions Graded A+

3 advantages of being a small cell - greater nutrient exchange, faster growth rate, higher mutation accum rate 3 features euk/prok share - cytoplasmic membrane, cytoplasm, ribosomes 3 functions of pili - surface attachment, genetic exchange, and type IV motility 3 properties of all cells - metabolism, growth, evolution 3 types of flagella and what they look like - peritrichous (on all sides), polar (one on the end), lophotrichous (multiple on end) 4 properties of only some cells - differentiation, communication, genetic exchange, motility are pili or fimbriae longer? - pili bacteriocins - inhibit or kill closely related species best method for counting environmental samples - microscopic counts - count dead and alive cells bioremediation - cleaning up pollutants chemolithotrophy - oxidation of inorganic compounds to get energy chemotaxis - directed movement in response to chemicalscomplex of the capsid and nucleic acid in virus? - nucleocapsid confocal scanning laser microscopy - generate 3D image - can focus on single layers and compile them cytoplasmic membrane 3 main functions - selective permeability, protein anchor, energy conservation difference between gram pos and neg cell walls? - gram pos contain 90% peptidoglycan and techoic acids, gram neg is mostly LPS layer disinfection - removes pathogens, not necessarily all microorganisms does dna require a primer in dna synthesis? - yes does transcription of rna need a primer? - no eukaryotic cell size - 10 to >600um