Carbohydrates Lab

I was gone for half of the carbohydrate lab, but doing the other half and going over notes in class has helped me to understand it more. We worked with sacharides. There was Monosaccharide, Disaccharide, and Polysaccharide.  We put the 3 different sacharides in 3 different test tubes and added benedict to them. We then stirred them and but them in a hot water bath.The Mono changed to a different color and had a positive affect, It changed with benedict. When we tested the Di it had a negative affect, it didn't change. The Poly also had a negative affect, it turned black in the iodine. If a benedict is added to sugar and it has a color change it would probably most likely be Di because it is the most likely the only saccharine that changes with sucrose. After we did the benedict we tested each saccharide with iodine. With iodine Mono had a negative affect. Di had a negative charge also, and Poly had a positive affect. They were pretty much opposite from each other with the benedict, besides Di because they were both a negative affect with the benedict and iodine. We also tested some foods in this lab. With the starch there was a negative affect with the benedict and a positive affect with the iodine. Cheerios also had a negative affect with the benidct and positive with the iodine. When we tested the corn syrup it was positive with the benedict and negative with the iodine. With the flour it was negative with the benedict and positive with the iodine. Glucose was positive with benedict and i'm not too sure what it was with the iodine. We tested KIX cereal and it had a negative affect with the benedict and positive with iodine. Galactose was positive with benedict and again i wasn't too sure with the iodine. The three elements that were present in the carbohydrates were Hydrogen, Oxygen and Carbon.




https://docs.google.com/document/d/10C6R_cVZGTSDNptVsjkQu0SvSYTuE5eO99st0MCCEOI/edit?hl=en_US