Biofilms 0.0 / 5 ? BiologyBiofilmsUniversityOther Created by: dionnej13Created on: 14-10-16 18:23 Define a biofilm A community of microoganisms adhered to a surface encased in an extracellular polymeric substance 1 of 17 Topography is.. The arrangement of natural and artificial parts in a surface 2 of 17 What may be competition for binding sites in biofilm adhesion? Proteins 3 of 17 Formation of a biofilm in an industry depends on.. Food matrix, cleaning policies, open surfaces, location 4 of 17 The temperature, pH, attachment sites and nutrient content of a ________ can affect formation of a biofilm surface 5 of 17 Co-aggregation is.. when two species of micoorganisms adhere to eachother 6 of 17 Biofilms form... gradually 7 of 17 the use of broad spectrum antibiotics leads to... all of the answers are correct 8 of 17 the four steps in biofilm establishment are... conditioning, attachment, retention, metabolism 9 of 17 The extracellular polysacharide matrix surrounding the microorganisms in the biofilm do what? Provide protection from disenfectant, provide nurtients, provide reservoir for gene transfer and qourum sensing 10 of 17 Intra quorum sensing occurs between The same species 11 of 17 The presence of albumin ________ the attachment of Pseudomonas to polystyrene inhibits 12 of 17 When grown with Pseudamonas, Monocytogenes adhered to a glass surface, ______ than when alone Better 13 of 17 Bacterial interaction with a surface relies on flagella activiy and chemotaxis 14 of 17 Which can remove a biofilm after the bacteria complexes with a surface? scraping, scrubbing, chemicals 15 of 17 Why can antibiotics not eradicate a biofilm? Cell wall target (eg: beta lactam) can not be reached 16 of 17 The environment of a biofilm is described as mostly ______ for the microorganisms involved synergistic 17 of 17
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