Chapter 9 Study Guide

Chapter 9 Study Guide - this deficiency disease a Bones...

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HUMN NTR 310D Study Guide Chapter 9: Fat Soluble Vitamins 1. What are the active and precursor forms of vitamin A? a. Active- rentinol (in animal products) b. Precursor- carotene (in plant foods) 2. What is vitamin A’s function in the retina? a. Enables eye to adjust to low light. 3. What happens to the cornea of the eye during a severe vitamin A deficiency? a. Dries out, corneas scarred 4. What is the name of this deficiency disease? a. xerophthalmia 5. What does RAE stand for? How much retinol is one RAE? a. Retinol Activity Equivalents b. 1 microgram retinal in one RAE 6. What is the primary function of vitamin D? How does this relate to calcium metabolism? a. Maintains bone b. Increases and maintains calcium and phosphorus in blood c. Increases bone calcification 7. Why is vitamin D sometimes called the "sunshine vitamin"? a. Cholesterol in skin is irradiated by uv rays and made into vitamin D in the kidney 8. What happens to bones during a vitamin D deficiency? What is the name of
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Unformatted text preview: this deficiency disease? a. Bones soften. Rickets in children; osteomalacia in adults 9. Is there a UL for vitamin A and D? a. Vitamin D UL- 50 micrograms b. Vitamin A UL- 3,000 micrograms 10. How does vitamin E function as an antioxidant? a. Protects cells exposed to oxygen 11. What are good dietary sources of vitamin E? a. Oils, mayo, peanuts 12. What is the primary function of vitamin K in the body? a. Blood clotting 13. Should vitamin K be taken with blood thinners? a. no 14. How can vitamin K be made in the body? a. Bacteria make vitamin K in digestive tract 15. What type of people are most likely to need vitamin supplements? a. Elderly, pregnant women, vegans, infants 16. How does a Supplement Facts label differ from a Nutrition Facts label? a. It has nutrients and amounts, suggested use, serving size, % daily value, manufacture, structure/function claim, FDA disclaimer...
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