Chapter 13 Practice Quiz
Which provides the most absorbable iron?
3 ounces steak
Which of these people is least likely to develop an iron deficiency?
52 year old man
Which mineral enhances insulin activity?
Chromium
Iron
Deficiency symptoms: anemia Toxicity symptoms: GI distress
Copper
Deficiency symptoms: bone abnormalities Toxicity symptoms: liver damage
Iodide
Deficiency symptoms: goiter, cretinism Toxicity symptoms: elevated TSH, goiter
Zinc
Deficiency symptoms: growth retardation, hair loss Toxicity symptoms: loss of appetite, low HDL
Selenium
Deficiency symptoms: keshan disease Toxicity symptoms: skin rash, fatigue, garlic breath odor
Manganese
Deficiency symptoms: rare Toxicity symptoms: nervous system disorders
Fluoride
Drinking water (if supplemented), tea, seafood
A slight manganese overload may aggravate a calcium deficiency.
False
Fluoride acts as a cofactor for many enzymes that facilitate the metabolism of carbohydrate, lipids, and amino acids.
False
Iron deficiency is also called iron-deficiency anemia.
False
When iron concentrations become abnormally high, the spleen converts some ferritin into another storage protein called hemosiderin.
False
Which of the following does lead not compete with?
Fluoride
Cretinism is caused by a deficiency of:
Iodine
Molybdenum
Legumes, cereals, nuts
Chromium
Meats (liver), whole grains, brewers yeast
Selenium sources
Seafood, organ meats, other meats
The mineral best known for its role as an antioxidant is:
Selenium
Capsaicin, found in hot peppers, modulates blood clotting
True
Chromium is an essential mineral that participates in carbohydrate and lipid metabolism.
True
Excess lead in the blood deranges the structure of red blood cell membranes, making them leaky and fragile.
True
Flaxseeds are a source of omega-3 fatty acids.
True
Heme iron is found only in foods derived from the flesh of animals, such as meats, poultry, and fish.
True
Most of the trace minerals are toxic at intakes only two and a half to eleven times above the estimated requirements.
True
Selenium deficiency is associated with Keshan disease, a disease of the heart.
True
The iron content of eggs can triple in the time it takes to scramble them in an iron pan, although absorption can be poor.
True
The most common cause of goiter is iodine deficiency.
True
Worldwide, iron deficiency is the most common nutrient deficiency.
True
Zinc participates in the synthesis, storage, and release of insulin.
True
A classic sign of zinc deficiency is:
growth retardation
Fluorosis occurs when fluoride:
is excessive
Examples of phytochemicals include:
lycopene and lutein
The intestinal protein that helps to regulate zinc absorption is:
metallothionein
Which of the following would not describe the blood cells of a severe iron deficiency?
pernicious
Iron absorption is impaired by:
phytates
