Question

Study the diagram given alongside and then answer the questions that follow: [5 MARKS]
(a) Name the cells of the pancreas that produce
(1) Glucagon
(2) Insulin

(b) State the main function of
(1) glucagon and (2) insulin

(c) Why is the pancreas referred to as an exo-endocrine gland?

(d) What is the technical term for the cells of the pancreas that produce endocrine hormones?

(e) Where in the body is the pancreas located?

Answer 1

Each Part: 1 Mark

(a) Glucagon is secreted from alpha cells. Insulin is secreted from beta cells.

(b) Glucagon stimulates the liver to convert glycogen into glucose and insulin promotes glucose uptake by body cells and stimulates deposition of extra glucose in liver and muscles.

(c) Pancreas is referred to as an exo-endocrine gland because its exocrine part produces pancreatic juices and endocrine part produces hormones.

(d) The technical term for the cells of the pancreas that produce endocrine hormones is Islets of Langerhans.

(e) Pancreas is located below the stomach.