Questions and Answers
All of the following foods contain active vitamin A except:
Healthy people can eat vitamin A-rich foods in large amounts without risking toxicity, with the possible exception of:
Population studies suggest that people whose diets lack foods rich in beta-carotene have a higher incidence of:
What is one symptom of a beta-carotene toxicity?
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Important roles of vitamin D in the body in addition to maintenance of bone health include all of the following except:
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Research suggests that deficiency of vitamin D may lead to what?
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The vitamin D deficiency disease in adults is known as:
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Which of the following is the most potentially toxic of all vitamins?
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By definition, a vitamin is all of the following except:
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Vitamin E serves as:
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The main function of vitamin K is:
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A compound in food that can be converted into an active vitamin inside the body is known as a(an):
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Characteristics of water-soluble vitamins include all of the following except:
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Which of the following statements regarding vitamin C is/are true?
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All of the following are fat-soluble vitamins except:
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The thiamin deficiency disease is known as:
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Pellagra is a _____ deficiency disease.
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An uninformed strict vegetarian is at special risk for _____ deficiency.
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Any disease that produces _____ malabsorption can bring about deficiencies of vitamins A, D, E, and K.
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Vitamin toxicity is more of a concern with which type of vitamins?
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The first sign of dehydration is:
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How much water and fluid beverages (in cups) should a man consume each day, under moderate environmental conditions and given a normal diet?
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Which of the following stabilizes bones and makes teeth resistant to decay?
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Which of the following makes up about 60 percent of the body's weight?
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Which of the following is the most abundant mineral in the body?
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Study Notes
Vitamins and Their Functions
- Active vitamin A is found in foods such as liver, fish oils, and milk, but not in french fries.
- Healthy adults can consume vitamin A-rich foods generally without toxicity, except for liver.
- A diet lacking beta-carotene correlates with a higher incidence of macular degeneration.
Vitamin A Toxicity
- A symptom of beta-carotene toxicity includes bright yellow skin.
- Vitamin D plays critical roles beyond bone health, but does not influence the health of the retina.
Vitamin D Deficiencies
- Deficiency in vitamin D is linked to cardiovascular disease and leads to osteomalacia in adults.
- Vitamin D is the most potentially toxic vitamin.
Understanding Vitamins
- Vitamins are organic compounds that are essential for bodily functions and are required in minute quantities.
- Vitamin E acts as an antioxidant, while vitamin K is essential for synthesizing blood-clotting proteins.
Water-Soluble vs Fat-Soluble Vitamins
- Water-soluble vitamins are easily absorbed and excreted; they rarely reach toxic levels and are not stored extensively in tissues.
- Vitamin C aids in infection protection and enhances iron absorption, but does not prevent the common cold.
Vitamin Deficiencies
- Thiamin deficiency leads to beriberi, while niacin deficiency results in pellagra.
- A strict vegetarian may risk vitamin B12 deficiency, often linked to malabsorption of fat-soluble vitamins.
Water and Mineral Intake
- The first sign of dehydration is thirst, which can lead to confusion or headache if ignored.
- Men should aim for approximately 13 cups of water and beverages daily under normal conditions.
- Fluoride strengthens bones and teeth, and water comprises about 60% of body weight.
- Calcium is the most abundant mineral in the body, contributing to numerous physiological functions.
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Description
Test your knowledge on vitamins and their dietary sources with this mid-term quiz covering chapters 7 and 8. Explore questions about vitamin A, its food sources, and implications for health. Perfect for students reviewing essential nutrition concepts.
