NURSING 2058 CHAPTER 06: VITAMINS

1. The chemical name for preformed vitamin A is: a. beta carotene. b. rhodopsin. c. retinaldehyde. d. retinol. ANS: D DIF: Easy REF: p. 102 MSC: Type of Question: Knowledge 2. The major provitamin form of vitamin A found in plant pigments is known as: a. beta carotene. b. chlorophyll. c. retinoid. d. beta xanthophyll. ANS: A DIF: Easy REF: p. 102 MSC: Type of Question: Knowledge 3. Liver stores of vitamin A are usually sufficient to last approximately: a. 1 week. b. 3 to 5 weeks. c. 6 to 12 months. d. 1 to 2 years. ANS: C DIF: Medium REF: p. 104 MSC: Type of Question: Knowledge 4. Vitamin A deficiency causes abnormal cell differentiation and results in: a. beriberi. b. pellagra. c. keratinization. d. kwashiorkor. ANS: C DIF: Medium REF: p. 105 MSC: Type of Question: Knowledge