Question

part ii.
distinguish between the major and trace minerals listed below by placing an a for macro or major minerals and a b for trace minerals or micro minerals.
22. iron 31. copper
23. selenium 32. calcium
24. sulfur 33. fluorine
25. chromium 34. zinc
26. molybdenum 35. sodium
27. chlorine 36. iodine
28. phosphorus 37. potassium
29. manganese 38. silicon
30. cobalt 39. magnesium

Explanation:

To solve this, we recall that major (macro) minerals are required in larger amounts (e.g., Calcium, Phosphorus, Potassium, Sodium, Magnesium, Sulfur, Chlorine) and trace (micro) minerals in smaller amounts (e.g., Iron, Selenium, Chromium, Molybdenum, Cobalt, Copper, Zinc, Fluorine, Iodine, Manganese, Silicon).

22. Iron

Iron is a trace (micro) mineral, so mark B.

23. Selenium

Selenium is a trace mineral, mark B.

24. Sulfur

Sulfur is a major (macro) mineral, mark A.

25. Chromium

Chromium is a trace mineral, mark B.

26. Molybdenum

Molybdenum is a trace mineral, mark B.

27. Chlorine

Chlorine is a major mineral, mark A.

28. Phosphorus

Phosphorus is a major mineral, mark A.

29. Manganese

Manganese is a trace mineral, mark B.

30. Cobalt

Cobalt is a trace mineral, mark B.

31. Copper

Copper is a trace mineral, mark B.

32. Calcium

Calcium is a major mineral, mark A.

33. Fluorine

Fluorine is a trace mineral, mark B.

34. Zinc

Zinc is a trace mineral, mark B.

35. Sodium

Sodium is a major mineral, mark A.

36. Iodine

Iodine is a trace mineral, mark B.

37. Potassium

Potassium is a major mineral, mark A.

38. Silicon

Silicon is a trace mineral, mark B.

39. Magnesium

Magnesium is a major mineral, mark A.

Answer:

1. B
2. B
3. A
4. B
5. B
6. A
7. A
8. B
9. B
10. B
11. A
12. B
13. B
14. A
15. B
16. A
17. B
18. A