Hormonal Regulation in Animals

The gland A is attached to the wind pipe in the human body. The gland A makes and secretes a hormone B which controls the metabolism of carbohydrates, fats and proteins in the body. The non-metal element C is necessary for the formation of hormone B. The deficiency of C in the diet can cause a deficiency of hormone B in the body leading to a disease D in which the neck of a person appears to be swollen. People are advised to use salt E in cooking food so as to avoid disease D.
(a) Name (i) gland A, and (ii) hormone B.
(b) What is the element C?
(c) Name one type of food which can provide sufficient C in the diet of a person.
(d) Name (i) disease D, and (ii) salt E.

We are advised to take iodised salt in our diet by doctors. Justify its importance in our bodies.

One of the following is an incorrect statement about insulin. This is:

The pancreas is made up of two parts A and B. The part A secretes insulin whereas part B secretes pancreatic juice.
(a) Which part is functioning as an endocrine gland? Why?
(b) What is insulin and what effect does it have in the body?
(c) Name the disease which can be treated by giving insulin injection.
(d) What does pancreatic juice contain? Where does pancreatic juice go?
(e) Name the life process in which pancreatic juice is made use of.

Name one gland  which acts only as an endocrine gland.

Fill in the following blanks with suitable words :

The two examples of effectors are .........and ...........

Which hormone regulates the ionic balance in the body?

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

(a) testosterone
(b) growth hormone
(c) adrenaline
(d) insulin