by Frances Sizer - Ch. 1-15, 9781337906371, with Rationales
The vitamins fall naturally into ________ classes. - ANSWER: two
What are the following statements characteristics of:
-they are needed in periodic doses
-they can reach toxic levels
-they are stored in fatty tissue
-they are not easily excreted - ANSWER: fat-soluble vitamins
What are the following statements characteristics of:
-they are absorbed directly into the bloodstream
-excesses are excreted into the urine
-most are not stored in the tissue to any great extent
-they do not easily build up toxic concentrations - ANSWER: water - soluble vitamins
A vitamin A precursor is: - ANSWER: beta carotene
found in plants
The following are good sources of _____________
carrots, pumpkins, and apricots - ANSWER: beta carotene
The vitamin D deficiency disease in children is known as - ANSWER: rickets
People who are exposed to the sun make vitamin D from _________. - ANSWER: cholesterol
Vit E exerts an especially important antioxidant effect in the - ANSWER: lungs
The DRI for vitamin E is______ milligrams a day for adults - ANSWER: 15
Vitamin K deficiencies may occur in: - ANSWER: newborns and those who have taken antibiotics
The niacin deficiency disease is know as - ANSWER: pellagra
of all the vitamins _____ is most likely to interact with medication - ANSWER: folate
What is the amount of vitamin C required to prevent the symptoms of scurvy from appearing? -
ANSWER: 10 milligrams
For which vitamin is the amount needed proportional to protein intake? - ANSWER: vitamin B6
People addicted to alcohol may develop a deficiency of - ANSWER: thiamin
Vitamin B12 is naturally occuring only in _____ - ANSWER: animals
In the U.S. today, scurvy has been found in all of the following in infants fed __________, people
addicted to _____ and the elderly. It has not been found in ___________ infants. - ANSWER: only
cow's milk
drugs
breast-fed
Between 3 and 10 million of the world's children suffer from severe vitamin _______ deficiency -
ANSWER: A