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Download Review - Belle Vernon Area School District
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Water Water Food General Fermentation Treatment Production Questions 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 What is the type of that looks drinkable but is not? Contaminated water Why is water treatment important? Water is needed for everyday living What does BOD stand for Biological oxygen demand What is drinkable water known as? Potable Why are rivers and other bodies of water known as Self water purification Help to convert organic material into inorganic material What is the goal of primary treatment Removal of solid particle from water What is the goal of secondary treatment? Removal of pathogenic bacteria and viruses What is the goal of tertiary treatment? Removal of nitrates to prevent eutrotiphication, but is expensive and rarely preformed. What is mineralization? In nature aerobic microorganism convert organic material to inorganic material. What is FLOC? Is the puffy accumulations after alum is added Fermentation occurs both desirable and undesirable. True What did the Sumerians ferment and when? Cheese, 6000 BC How much alcohol is in wine? Up to 6% What gas is produced when Yeast ferments grapes? CO2 Why are hops added to beer? Flavoring What are some ways to prevent infection from microorganisms? 1.Temperature 2. pH 3. Intrinsic Factors (Shells, coverings) 4. Water availability What is soy sauce made from? Fungi and bacteria In cheese production there is a solid and a liquid. What is each called and used for? Solid – curd – cottage cheese Liquid – whey - cheese In food posioning, what does botulism produce? Neurotoxin What type of yeast is used to make beer? Brewer’s yeast What percent of acid is vineagr 4% How long does bottom fermentation take in beer production? 8-14 days In milk production what production is used to clump milk proteins together? Renin Why is chlorine added to the water supply? To kill anything that might of made it through the treatments What is ALUM stand for and why is it used in water treatments? Alum is a combination of aluminum and sulfate, used to clump together smaller suspended particles (bacteria & viruses) to settle out.
