1. Islets of Langerhans secrete   Thyroxine   Growth hormone   Insulin   Adrenaline   Hint Hint       2. Thyroxine contains - bromine, chlorine, fluorine or iodine?   Iodine   Bromide   Fluorine   Chlorine   Half-n-half Clue   3. True or false: Lump in the neck due to enlargement of thyroid is known as Goitre.   True   False   4. True or false: Secretion of excess of growth hormone causes Gigantism.   True   False   5. True or false: Adrenaline is secreted by pancreas.   True   False   6. The lack of which hormone results in dwarfism?   Adrenaline   Growth hormone   Insulin   Noradrenaline   Hint       7. The lack of which hormone does not affect growth - Thyroxine, Insulin, Growth hormone or Sex hormone?   Growth hormone   Thyroxine   Insulin   Sex hormone   Hint