IB DP Physics Option D: Human physiology (AHL) :D.5 Hormones and metabolism SL Paper 3

Water and minerals are essential in the human diet. List two other types of nutrient in a human diet.

1:    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2:    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
   

Outline the benefits of using iodine as a dietary supplement.

(essential) amino acids;
(essential) fatty acids / oils / lipids / fats;
vitamins;
carbohydrates;

a. iodine is a mineral that is often scarce in local diets/water supplies;
b.required for normal thyroid function/synthesise thyroxine;
c.prevents goitre/avoid iodine deficiency/avoid absorbing iodine–131/radioactiveiodine;
d.prevents brain damage;[