Multiple ChoiceWhy is it necessary to dilute a sample when determining bacterial numbers using plate counts?53views
Multiple ChoiceMicrobial hyaluronidase, coagulase, and streptokinase are examples of which type of molecules produced by pathogens?35views
Multiple ChoiceWhich of the following formulas is used to calculate the original cell density (OCD) in a sample after performing a serial dilution and plate count?41views
Multiple ChoiceWhich term best describes the unintentional introduction of microorganisms into food, leading to its spoilage or potential harm to consumers?30views
Multiple ChoiceWhich of the following is the easiest way to recognize food contaminated with spoilage bacteria?32views
Multiple ChoiceWhich of the following correctly identifies the three main layers of a separated blood sample after centrifugation, and matches the primary formed elements seen on a blood smear?31views
Multiple ChoiceA food worker has safely cooled a large pot of soup to 70°C within two hours. According to safe food handling practices, to what temperature must the soup be cooled within the next four hours to minimize microbial growth?39views