Vitamins And Minerals Flashcards
(228 cards)
______ are essential organic substances that produce deficiency symptoms when missing from diet
Vitamins
What are the basic functions of vitamins?
Coenzymes
Hormones
Antioxidants
T/F: vitamins yield no energy
True
What vitamins are important in blood formation (and clotting)?
Vitamin B-6 (PLP)
Vitamin B-12 (cobalamin)
Folate
Vitamin K
What vitamins play a role in protein and amino acid metabolism
Vitamin B-6 Folate Vitamin B-12 Vitamin C Choline (not a true vitamin) Riboflavin (indirect)
What vitamins are important in antioxidant defenses?
Vitamin E
Vitamin C
Carotenoids
Riboflavin (indirect)
What vitamins are important in gene expression
Vitamin A and Vitamin D
What vitamins are important in bone health?
Vitamin A
Vitamin D
Vitamin K
Vitamin C
What vitamins are important in energy metabolism
Thiamin Riboflavin Niacin Panthothenic acid Biotin Vitamin B-12 (cobalamin)
What fat soluble vitamins can accumulate in the body and be toxic?
Particularly vitamins A and D
Vitamin toxicity is most likely due to ______
Supplementation
________ vitamins are not readily excreted and can cause toxicity
Fat soluble vitamins
How are fat-soluble vitamins transported?
Transported with fat in lipoproteins
Vitamin A (retinoids) is a \_\_\_\_\_. \_\_\_\_\_\_\_ is important in visual pigment \_\_\_\_\_\_ is important in the immune system \_\_\_\_\_\_\_ is important in cell growth and proliferation
Hormone
Retinal
Retinol
Retinoate
Vitamin D is a ______ and is important in ____ and ____ regulation
Hormone
Blood calcium and phosphorus regulation
Vitamin E is a ________. And may have some ______ function
General antioxidant
Coenzyme function. Aids in stabilizing free radicals
Vitamin K is a __________. It is important in ______ in blood and bone proteins
Prosthetic group coenzyme
Carboxylation glutamate
What are the major funcitons of vitamin A>
Promote vision
Promote growth
Prevent drying of skin and eyes
Promote resistance to bacterial infection and overall immune system function
What is the RDA of vitamin a for women? Men?
700 micrograms -women
900 micrograms-men
2300-3000 IU if as preformed vitamin A
What are the dietary sources of preformed vitamin A?
Liver
Fortified milk
Fortified breakfast cereals
What are the dietary sources of provitamin A?
Sweet potatoes Spinach Greens Carrots Cantaloupe Apricots Broccoli
What are some deficiency symptoms?
Night blindness
Xerophthalmia
Poor growth
Dry skin
________ vitamin A isn’t toxic but ______ vitamin A is toxic
Proformed; preformed
What are the major functions of vitamin D?
Increase absorption o calcium and phosphorus
Maintain optimal blood calcium and calcification of bone