Some major examples of osmosis: 1  Absorption of water by plant roots. 2  Reabsorption of water by the proximal and distal convoluted tubules of the nephron. 3  Reabsorption of tissue fluid into the venule ends of the blood capillaries. 4  Absorption of water by the alimentary canal â stomach, small intestine and the colon.
Cancer treatment â Patients being treated for cancer with chemotherapy or radiation may experience a metallic taste. Pregnancy â During the early stages of pregnancy, some women find that their sense of taste changes. One of those changes may be a metallic taste.
GERD and heart burn too cause metallic taste in mouth. Post nasal drip as in sinusitis, salivary glands infection,pharyngitis or strep infection too are common causes. Certain dentures and artificial tooth or filling of dental cavities too give a metallic taste.