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Iron is an essential micronutrient in the human body.

Which one of the following options is the most abundant store of iron in the body?

(Please select 1 option)

Haem enzymes

Ferritin and haemosiderin

Haemoglobin Correct

Transferrin bound iron

Myoglobin

Explanation

Iron is an essential micronutrient, as it is required for adequate erythropoietic function, oxidative metabolism and cellular immune responses. Although the absorption of dietary iron (1-2 mg/d) is regulated tightly, it is just balanced with losses.

There are 35-45 mg/kg iron in the adult body (about 4-5 g)

Iron is present in the following forms:

Haemoglobin 65%

Ferritin and haemosiderin 30%

Myoglobin 3.5%

Haem enzymes 0.5%

Transferrin bound proteins 0.1%

Answer Statistics

1

2%

2

22%

3

49%

4

10%

5

20%

Times answered: 251