Iodine is necessary for the synthesis of which hormone?

$(a)$ An old man is advised by his doctor to take less sugar in his diet. Name the disease from which the man is suffering. Mention the hormone due to imbalance of which he is suffering from this disease. Which endocrine gland secretes this hormone?
$(b)$ Name the endocrine gland which secretes growth hormone. What will be its effect on a person of:
$(i)$ Deficiency of growth hormones?
$(ii)$ Excess secretion of growth hormones?

Which of the following hormones prepares our body for action in emergency situations?

Answer the following:
$(a)$ Name the endocrine gland associated with the brain.
$(b)$ Which gland secretes digestive enzymes as well as hormones?
$(c)$ Name the endocrine gland associated with the kidneys.
$(d)$ Which endocrine gland is present in males but not in females?

The hormones secreted from which gland regulate the function of the pituitary gland?

Give the function$(s)$ of the following plant hormones:
$(i)$ Auxins $(ii)$ Gibberellins $(iii)$ Cytokinins $(iv)$ Abscisic acid $(v)$ Ethylene