There are a few other Beatles tunes where Lennon's choice of harmonica might not be obvious. The signature riff of Please Please Me is almost as distinctive as the intro to Love Me Do.
The bile that is secreted by the liver and stored in the gallbladder is not the same as the bile that is secreted by the gallbladder. During gallbladder storage of bile, it is concentrated by removal of some water and electrolytes.
The bile stored in the gallbladder contains water, bile salts, cholesterol, fats, proteins, and bilirubin. Bile salts break up the fat that is consumed in the food we eat. The bilirubin gives the bile and ours stools their yellowish color.