1. True or false: Insulin is secreted by pituitary gland.   True   False   2. True or false: Endocrine glands have ducts.   True   False   3. True or false: Adrenaline is secreted by pancreas.   True   False   4. True or false: Lump in the neck due to enlargement of thyroid is known as Goitre.   True   False   5. Islets of Langerhans secrete   Thyroxine   Growth hormone   Adrenaline   Insulin   Hint Hint       6. Thyroxine contains - bromine, chlorine, fluorine or iodine?   Chlorine   Fluorine   Bromide   Iodine   Half-n-half Clue   7. Identify the organ 'A' present on upper poles of kidneys.   Adrenal Gland   Spleen   Gall bladder   Thyroid Gland   Half-n-half Clue