Exam 4, FNDH 400 Dr. Lindshield questions and answers latest top score.

Exam 4, FNDH 400 Dr. Lindshield questions and answers latest top score. . Warfarin thins blood by decreasing the absorption of vitamin A. T F - correct answers.False- Warfarin thins blood by decreasing the regeneration of vitamin K 25(OH)D is the active form of vitamin D, which is created by 25-hydroxylase in the kidney. T F - correct answers.False- 25(OH)D is the circulating form of vitamin D created by 25- Hydroxylase in the liver 1,25(OH)D2 binding to RXR increases the synthesis of calcitonin, which increases absorption of calcium. T F - correct answers. In response to high iron levels, hephaestin is released from the enterocyte, which causes the degradation of ferritin, thereby decreasing iron excretion. T F - correct answers.False- In response to high iron levels. hepcidin is released by the liver which causes causes the degredation of ferroportin, preventing the transportation of iron into circulation Fluoride decreases teeth's resistance to acid by replacing phosphate molecules in hydroxyapatite, forming fluorhydroxyapatite. T F - correct answers.False- fluoride increases teeth's resistance to acid by replacing phosphate molecules in hydroxyapatite forming fluorohydroxyapetite Phylloquinone, is the plant form of vitamin A that has an unsaturated tail, that is of varying length to multiple repeated units.