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Understanding Nutrition Chapter 13 Exam Questions And Accurate Answers
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Understanding Nutrition Chapter 13 Exam QuestionsAnd Accurate Answers
Named for their small quantity in the body-not meant to diminish their importance
Answer trace elements
Essential for iron metabolism and hemoglobin synthesis Answer copper
Key constituent of active center of several metalloenzymes Answer molybdenum
Antioxidant that is found primarily in soil and crops Answer selenium
Biologically active constituents of plant-based foods that have potential health benefits
Answer phytochemicals
Added to public drinking water to improve dental health Answer flouride
Essential component of thyroid hormones; also involved in energy metabolism - Answer
iodine
Nutrient involved in immune function, metabolism, growth, insulin synthesis, and
antioxidant function - Answer zinc
Critical in allowing insulin to function properly - Answer chromium
Children with _____ deficiency are particularly at risk for lead toxicity - Answer iron
, Most easily absorbed form of iron; found only in animal flesh (meat, fish, poultry) -
Answer heme iron
Routine intake of calcium and iron supplements can interfere with the mineral _____
absorption. - Answer manganese
The addition of trace minerals to supplements is strictly controlled by the FDA.
a)True
b)False - Answer false
Iron can change between ferrous iron and _____ iron. - Answer ferric
Iron acts as a _____ to many enzymes. It participates in many _______-_______ reactions. -
Answer cofactor; oxidation-reduction
Iron plays a role in the electron transport chain to produce ____. - Answer ATP
The protein _____ is located in red blood cells. The protein _____ is located in muscle
cells. - Answer hemoglobin; myoglobin
Greater amounts of iron are absorbed when stores are ____. - Answer empty
_____ is the iron-storage protein, capturing iron from food. This iron is stored in _____
cells. - Answer ferritin; intestinal (small intestine)
If iron is needed, the storage protein releases it to the transport protein, ____. - Answer
transferrin
If iron is not needed, the cells holding it are shed and removed in ____. - Answer feces
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