[ Choose ] Greatly required during pregnancy abundant form of vitamin A involved in cell division and gene expressio vitamin easily lost when exposed to light Most common form of vitamin A found in the retina of the eye Niacin deficiency disease vitamin lost when exposed to heat Prevent Rickets in children Thiamine deficency disease This is mainly obtained from animal products precursor form found in carrots Intestinal bacteria produce this vitamin Vitamin C deficiency disease vitamin E Deficiency disease Vitamin B6 deficiency disease
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A person living in a tropical environment could conceivably receive enough of this vitamin without having to eat any food sources of it: a. Vitamin A c. Vitamin C b. Vitamin B12 d. Vitamin D 2. Which of the following maternal deficiencies could result in an infant being born with a neural tube defect? a. Thiamine c. Vitamin K b. Niacin d. Folate 3. The use of this vitamin as an LDL-cholesterol lowering (and HDL increasing) drug is often complicated by its painful "flushing" of the skin. a. Niacin c. Vitamin B6 b. Vitamin B12 d. Thiamine 4. True statements about water-soluble vitamins include: a. They are not stored in the body to any great extent b. They are easily excreted in the urine c. They have a high risk for immediate toxicities d. Responses a and b e. Responses b and c 5. The vitamin D deficiency disease in children is known as: a. Osteomalacia c. Rickets b. Pellagra d. Osteoporosis
Sri K.
Rickets Vitamin D is essential for strong, healthy bones. Our bodies produce vitamin D naturally when sunlight falls upon the skin, or it can be taken as a dietary supplement. Although the bone disease rickets was largely eliminated in England during the $1950 \mathrm{~s}$, some people there are concerned that this generation of children is at increased risk because they are more likely to watch TV or play computer games than spend time outdoors. Recent research indicated that about $20 \%$ of British children are deficient in vitamin D. Suppose doctors test a group of elementary school children. a) What's the probability that the first vitamin D- deficient child is the eighth one tested? b) What's the probability that the first 10 children tested are all okay? c) How many kids do they expect to test before finding one who has this vitamin deficiency? d) They will test 50 students at the third-grade level. Find the mean and standard deviation of the number who may be deficient in vitamin $\mathrm{D}$. e) If they test 320 children at this school, what's the probability that no more than 50 of them have the vitamin deficiency?
Choose from the words in the box to complete the following paragraphs regarding the importance of vitamins and the consequences of inadequate dietary intake. (Note: Each word can be used only once.) calcium regulation collagen synthesis energy metabolism mineral toxicity vision vitamin vitamin deficiency vitamin deficiency disease vitamin toxicity A ________ is an organic compound that must be obtained from the diet and is needed to sustain life. Vitamins have many functions throughout the body. For example, vitamin A is important for ________, vitamin C is important for ________, and vitamin D is important for ________. A ________ is a lack or shortage of a particular vitamin, and prolonged insufficiency can eventually lead to a ________, characterized by harmful symptoms. vitamin deficiency disease vitamin deficiency calcium regulation
Adi S.
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