Hemoglobin: The oxygen-carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygenated state it is called oxyhemoglobin and is bright red.
Caffeine by McDonalds Iced Coffee Size. 1  Medium (16 floz): 133mg. 2  Large (22 floz): 200mg. 3  Extra Large (32 floz): 320mg.
Mcdonalds Coffee or Starbucks? How much caffeine in a cup of coffee is determined by the beans used, the processing methods, and the brewing process. As you can see, there are more milligrams of caffeine in a cup of 16 oz Starbucks Grande than in a 16 oz cup of Dunkin Donuts coffee.A large 16 oz cup of McDonalds coffee has a bit less caffeine.s you can see, there are more milligrams of caffeine in a cup of 16 oz Starbucks Grande than in a 16 oz cup of Dunkin Donuts coffee.