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Question
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.
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Solution
(a) The part A functions as an endocrine gland. The glands that secrete their secretions directly into the blood are called endocrine glands. Part A of the pancreas secretes insulin (a hormone) directly into the bloodstream.
(b) Insulin is a hormone which is secreted by the pancreas. It controls the blood sugar level.
(c) Deficiency of insulin in the body can lead to diabetes. Diabetes can be treated by giving injections of insulin.
(d) Pancreatic juice contains digestive enzymes like pancreatic amylase, trypsin and lipase. The pancreatic juice goes into the small intestine where complete digestion of food takes place.
(e) Digestion is the process where the enzymes present in the pancreatic juice are used to break down the food.
