Warm-Up Question You are a food scientist and it is your job to determine if there is sugar and...
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![Page 1: Warm-Up Question You are a food scientist and it is your job to determine if there is sugar and starch in a new drink. How would you test to see if the.](https://reader030.fdocuments.us/reader030/viewer/2022032803/56649e2d5503460f94b1c962/html5/thumbnails/1.jpg)
Warm-Up Question
You are a food scientist and it is your job to determine if there is sugar and starch in a new drink.
• How would you test to see if the product contains sugar? Starch?
•Write your answer in a sentence starting with the phrase: “If I were a food scientist in charge of testing a new drink…”
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CARBOHYDRATES
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Carbohydrates:Carbohydrates:Carbon, Hydrogen, OxygenCarbon, Hydrogen, Oxygen
CHOCHO
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CarbohydratesCarbohydrates
•Small sugar moleculesSmall sugar molecules to large starch moleculeslarge starch molecules.
• Used for Energy• Some provide structure
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CarbohydratesCarbohydratesMonoMonosaccharide: saccharide: oneone sugar unit sugar unit
Examples:Examples: glucose (glucose (C6H12O6) is blood sugar
deoxyribose in DNAdeoxyribose in DNA
fructose is fruit sugarfructose is fruit sugar
galactose is milk sugargalactose is milk sugarglucoseglucose
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Different Forms of Glucose
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DiDisaccharide: saccharide: twotwo sugar sugar unitunit
Examples: Examples: –Maltose (glucose+glucose) in Maltose (glucose+glucose) in maltmalt
–Sucrose (glucose+fructose) is Sucrose (glucose+fructose) is sugarsugar
–Lactose (glucose+galactose) Lactose (glucose+galactose) in milkin milk
glucoseglucoseglucoseglucose
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PolyPolysaccharide: saccharide: manymany sugar unitssugar units
Examples:Examples:starch (rice, potatoes, starch (rice, potatoes, cereal)cereal)
glycogen (starch in the liver)glycogen (starch in the liver)
cellulose (lettuce, wood, cellulose (lettuce, wood, fiber)fiber)
glucoseglucoseglucoseglucose
glucoseglucoseglucoseglucose
glucoseglucoseglucoseglucose
glucoseglucoseglucoseglucose
cellulosecellulose
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Starch
• Consists of glucose subunits
• Plant energy storage molecule
• Starch can be digested by animals.
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Cellulose
• Composed of glucose subunits
• Different bond formed than starch
• Structural component in plants
• Cannot be digested by animals
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Glycogen:Humans and other mammals
make a special form of carbohydrate in their liver.
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Glycogen can be broken down into glucose for cellular energy.
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Three Monosaccharides
C6H12O6
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Dehydration Synthesis
• Sugars bond together to make disaccharides and polysaccharides.
• Water is removed.
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How Disaccharides form:
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Hydrolysis:Water is added to split sugars apart.