A piece of thread was tied tightly around an animal's pancreatic duct. The animal subsequently had difficulty in digesting food but did not get diabetes. Explain.

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 injections.

(d) What does pancreatic juice contain? Where does pancreatic juice go?

(e) Name the life process in which pancreatic juice is made use of.

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.

Which is the target organ of both adrenaline and insulin?

(a) heart

(b) kidney

(c) liver

(d) pancreas

Correct Answer: (c)

A gland W is located just below the stomach in the human body. The gland W secretes a hormone X. The deficiency of hormone X in the body causes a disease Y in which the blood sugar level of a person rises too much. The person having high blood sugar is called Z.

(a) Name (i) gland W, and (ii) hormone X.

(b) What is the function of hormone X?

(c) Name (i) disease Y, and (ii) person Z.

(d) What advice would you like to give to a person who is suffering from disease Y due to faulty life-style?