If you hold a salty cracker in your mouth long enough, it will begin to taste sweet. What is responsible for this change in taste? Sucrase breaks down sucrose into two glucose atoms that taste sweet. Amylase breaks down the starch in the cracker into glucose monomers that taste sweet. Energy from the sun helps to break down the bonds over time releasing sugars from macromolecules. Phosphorylase breaks down glycogen into fructose monomers that provide the sweet flavor.
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Students in biology are studying the macromolecules of life. They used a calorimeter to determine the calories in various types of food. Once the lab was completed, the students ate the left over food samples. Monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. Elaborate on what happened chemically while chewing the saltine. Include the macromolecules present.
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