If you're converting from active dry to instant, you'll want to use about 75-80% of the yeast called for in the recipe. But I don't often bother, myself. The bread rises a bit faster than the recipe calls for, sometimes, but not much.
in digestion (biology): Digestion. The chemical reactions involved in digestion can be clarified by an account of the digestion of maltose sugar. Maltose is, technically, a double sugar, since it is composed of two molecules of the simple sugar glucose bonded together. The digestive enzyme maltase catalyzes a reaction in which a molecule of water is inserted at the point at which the two glucose units are linked, thereby...
The enzyme that splits lactose into glucose and galactose is called lactase, and it is located on the surface of the cells that line the small intestine. Lactose intolerance is caused by reduced or absent activity of lactase that prevents the splitting of lactose (lactase deficiency).