Unlike nonheme iron, heme iron is:
A) a part of hemoglobin and myoglobin.
B) not found in beef, pork, poultry, and fish.
C) found mainly in plant-based foods.
D) not a form of dietary iron.
Q. 2Which of the following statements is true of iodine?
A) It is a component of amino acids such as cysteine and methionine.
B) It is absorbed mostly in the large intestine.
C) It is present in low concentration in ocean fish and mollusks.
D) It is essential to the production of hormones by the thyroid gland.
Q. 3Which of the following are dietary sources of potassium?
A) Processed meats
B) Dairy products
C) Potato chips
D) Pickled vegetables
Q. 4_____ is an essential trace mineral that is a cofactor for several important metalloenzymes needed for protein metabolism.
A) Molybdenum
B) Calcium
C) Phosphorus
D) Magnesium
Q. 5When a nerve cell is at rest, _____.
A) positively charged sodium ions are concentrated inside of the cell
B) negatively charged chloride ions are concentrated inside of the cell
C) negatively charged sodium ions are concentrated inside of the cell
D) positively charged potassium ions are concentrated inside of the cell
Q. 6Which of the following causes low blood sodium?
A) Intake of highly processed foods
B) Excessive sweating
C) Low water consumption
D) High salt intake
Q. 7Which of the following is a similarity between chromium and manganese?
A) Both are absorbed very little by the body regardless of their intake.
B) Both serve as a component of the thyroid hormones.
C) Both are major minerals required by the body.
D) Both are cofactors for an enzyme that protects cells from free radicals.
Q. 8__________is a condition characterized by an insufficient amount of water in the body.
A) Kyphosis
B) Osmosis
C) Hyponatremia
D) Dehydration
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