Question

What are endocrine glands ? Write one main feature of it. (ii) Name the hormone secreted by thyroid glands and state its main functions. (iii) What is the importance of iodized salt in our daily life ?

Answer 1

1.Endocrine glands are tissues which manufacture hormone and release them directly into the blood stream. They are carried by blood towards the site of action

2.thyroid gland secretes thyroxine ( tetraiodothyroxine ) , thyrocalcitonin and triiodothyronin

3.iodine is required for production of thyroxine hormone