Glucose is the most important carbohydrate fuel in human cells. Its concentration in the blood is about 1 gdm-3. The small size and solubility in water of glucose molecules allows them to pass through the cell membrane into the cell. Energy is released when the molecules are metabolised (C6H12O6 + 6O2 6CO2 + 6H2O).
A low and slow start delivers perfectly evenly cooked medium-rare doneness all the way from edge to center. Blasting the prime rib with heat just before serving gives you a crackling-crisp, browned crust. Yield:Serves 3 to 12, depending on size of roast. Active time: 15 minutes. Total time:4 1/2 hours to 8 1/2 hours.
4 Place the roast fat side up and rib bones down in a roasting pan. Insert a meat thermometer into the thickest part of the roast, making sure that the thermometer isn't touching a bone. 5 After browning the roast at a 500Â°F temperature in the oven for 15 minutes, reduce the oven temperature to 325Â°F.To figure out the total cooking time, allow about 13-15 minutes per pound for rare and 15-17 minutes per pound for medium rare.oast in oven until thermometer registers 115Â°-120Â°F for rare or 125Â°-130Â°F for medium. (The internal temperature of the roast will continue to rise after you take the roast out of the oven.). Check the temperature of the roast using a meat thermometer 30 to 45 minutes before you expect the roast to be done.