Carbohydrate Identification Lab Prezi

This is the link for our Prezi:
http://prezi.com/wsttp6xqsmys/carbohydrate-identification-lab/

PH Lab Data Analysis

Carbohydrate Lab

     The other day, our class decided to conduct an experiment about carbohydrates. We tested each product to determine what they were. We wanted to find out if they were monosaccharides, polysaccharides, or disaccharides. Each one of these types of carbohydrates has a its own specific function. In the experiment we used something called benedict to see if the products reacted with it. Some of the things we used were flour, corn syrup, oatmeal, cereal, and sugar. If any of these turned black, that means they are polysaccharides. We then added benedicts to the polysaccharides, monosaccharides, and disaccharides and put everything in boiling water! we did this to see how everything would react. While we did this, we learned that if the solution is a polysaccharide, it will turn black, and if it was a monosaccharide it would turn orange. The disaccharides actually wont change color. When we finished the test, we saw that the mono reacted with the benedicts. This tells us that any substance that reacts with a benedict solution like this after it is heated,is going to be a monosaccharide. When we mixed iodine in a test tube with monosaccharides, disaccharides, and polysaccharides and the polysaccharides reacted with the iodine, that means any food that will later react like this with the iodine is going to be a polysaccharide. Next in our experiment, we decided to put cereal, corn syrup, and flower into the test tubes and react them with the iodine. We put ten drops in the test tubes to see what the results would look like. The corn syrup and flower reacted with the iodine telling us that these two are also polysaccharides. Then, we decide to test for monosaccharides doing the same steps as earlier, heating the tubes with the benedict solution. We easily saw the light corn syrup is a monosaccharide. So for a quick explaination, monosaccharides turn orange in benedict solution, and nothing changes in iodine. Disaccharides dont change in benedict solution or iodine. Polysaccharides dont change color mixed with benedict solution, but they do turn black when they are mixed with the iodine.



 This is a diagram of the types of carbohydrates.