This lab really fascinated me and it was hard for me to believe that the substances would change like they did. I had to see it to believe it. The thing I didn't believe was that just having a few more sugar molecules bonded together would affect how it changed. The first thing we did was to mix the sugar in with the water in 3 beakers. There was a monosaccharide, disaccharide, and a polysaccharide.
After that we split each beaker up into 2 different test tubes. Then we added benedict's solution to one and iodine to the other. We put the ones with benedict's solution in the boiling water and left the iodine solutions on the rack.
After a minute passed we pulled the test tubes out of the water and lined them up with iodine solutions on the rack.
In the end the monosaccharides had an orange benedict's solution and a clear brown iodine solution. The disaccharides had a clear light blue benedict's solution and a clear brown iodine solution. The polysaccharide had a clear benedict's solution and a dark brown iodine solution.
This lab helped me realize that even the smallest amount of change in a molecule can affect how they react. It also showed me that the different types of sugar can affect the way your body works. That is what the lab taught me.
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