1. Explain the mechanism associated with the function of vitamin A in the visual response. What occurs with lack of dietary vitamin A?  Be sure to support your answer and cite your sources using APA style. (10 points)
  2. Compare and contrast the characteristics of the two deficiency diseases osteomalacia and rickets. Are these diseases we commonly see today? If so, in what populations? Support your answer with literature. Be sure to cite your sources using APA style. (15 points)
  3. List the different forms of vitamin E found in the diet as well as their vitamin E activity in the body. What are the major food sources of vitamin E? Support your answer with literature. Be sure to cite your sources using APA style. (10 points)
  4. Discuss in detail how anticoagulant therapy interferes with vitamin K metabolism and activity. Support your answer with literature. Be sure to cite your sources using APA style. (10 points)

Pick ONE of the fat-soluble vitamins and consider its role in a specific disease/condition or disease prevention. Find supporting materials (peer reviewed articles or review articles within the last 5 years) and provide an overview of its role in relation to a disease/condition or prevention of a disease or condition. Be sure to cite your sources.