What is a common test to determine fecal contamination?Group of answer choicesMicroscopic Particulate AnalysisHeterotrophic Plate CountDensity Mass Ratio

5. What are the three types of food contamination?

Food and Industrial Microbiology (Exam)

A sample taken from a sewage treatment plant is likely to have too many bacteria to count directly. What would be best done when determining the numbers of viable bacteria in the sample? Group of answer choices Filtration then spread plating the filtrate Serial dilution and spread plating the dilutions 16-streak plating of the wastewater sample All of the other answer choices are correct Optical density reading in a spectrophotometer

Which test is used to determine the presence of powder residues on clothings?

The problem caused by infections in healthcare settings has received much attention in recent years. However, the environment we live and work could also contribute in playing major roles in human-microbe contamination relationship. Information on the bacterial contamination in communal areas of a workplace is of importance as this would help in identifying the sources of an infection with the view of taking preventive measures. Samples were collected from office and toilet door handles and knobs, washroom tap heads, elevator buttons and computer keyboards using moistened sterile cotton swabs. The obtained results showed that all (100%) had microbial contamination. The degree of microbial growth as shown in table indicates that ______________17Mark for ReviewABCWhich choice most effectively uses data from the table to illustrate the claim in the text?Athe computer keyboards had the least microbial contamination in terms of colony count while the office door handles and the heads of toilet taps had the most microbial contamination.Bthe elevator buttons had the least microbial contamination in terms of colony count while the computer keyboards and the heads of toilet taps had the most microbial contamination.Cthe elevator buttons had scanty microbial contamination in terms of colony count while the office door handles and the toilet door handles had the most microbial contamination.Dthe toilet door handles had the least microbial contamination in terms of colony count while the toilet tap heads and computer keyboards had the most microbial contamination.