Discussion
Which of the following statements are correct?
a. Minerals are required for body cells, tissues, organs and fluids. They also control some of the body processes (e.g. transmission of nerve impulses).
b. Minerals are essential parts of body fluids.
c. Some minerals are required in relatively large amounts. These include calcium, phosphorus and magnesium.
d. Some minerals are required in minute amounts and are known as trace elements. These include iodine, copper and sodium.
e. Iron in its ferric form is easier to absorb than in its ferrous form.
Choose the most appropriate answer from the options given below:
Answer: A
The correct statements are a, b and c.
Minerals build cells, tissues and fluids and regulate processes such as nerve transmission (a), and they are essential parts of body fluids (b). Calcium, phosphorus and magnesium are needed in relatively large amounts, as macrominerals (c).
Statement d is wrong because sodium is a macromineral, not a trace element; iodine and copper are trace elements. Statement e is reversed: iron is absorbed more easily in its ferrous (Fe2+) form than in its ferric form, which is why vitamin C, which keeps iron reduced, aids absorption.
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