Because this vitamin binds to the same receptors as lithocholic acid, some studies have linkedhigh concentrations of it to lower levels of colorectal cancer. Signs of deficiency of this substanceinclude genu valgum, rachitic rosary, and Harrison's groove. This vitamin is converted to itshormonal form through 1-alpha-hydroxylase in the kidney, which is activated by (*) parathyroidhormone. Forms of this vitamin that come from plants are known as ergocalciferol. This vitamin isnaturally formed by sterols in the skin reacting with UV-B radiation. Deficiency of this vitamin results inbones with poor calcification and is called osteomalacia in adults, or rickets in children. For 10 points,name thi
Because this vitamin binds to the same receptors as lithocholic acid, some studies have linkedhigh concentrations of it to lower levels of colorectal cancer. Signs of deficiency of this substanceinclude genu valgum, rachitic rosary, and Harrison's groove. This vitamin is converted to itshormonal form through 1-alpha-hydroxylase in the kidney, which is activated by (*) parathyroidhormone. Forms of this vitamin that come from plants are known as ergocalciferol. This vitamin isnaturally formed by sterols in the skin reacting with UV-B radiation. Deficiency of this vitamin results inbones with poor calcification and is called osteomalacia in adults, or rickets in children. For 10 points,name this vitamin, often fortified in milk.
Because this vitamin binds to the same receptors as lithocholic acid, some studies have linkedhigh concentrations of it to lower levels of colorectal cancer.
Vitamin D