react with one specific molecule— such as a protein or starch. these molecules are called "substrates". biochemistrycorner enzymes increase the speed of a biochemical reaction by lowering the required activation energy (ea) required. biochemistrycorner starch is made up of many molecules of the simple sugar...
mouth for a long time. bacteria that live on the teeth feast on these bits of food. they create acid, which eats away at tooth enamel. between meals or snacks, saliva washes away the acid. if your child is always eating, there may not be time for this acid to get washed away. when most people think of sugar...