Glucagon and Its Mode of Action

Q.

Glucagon is secreted by:

1. Alpha cells of pancreas

2. Adrenal cortex

3. Beta cells of pancreas

4. Adrenal medulla

Q.

Glucagon is secreted by the

1. Alpha cells of pancreas

2. Beta cells of pancreas

3. Adrenal cortex

4. Adrenal medulla

Q.

Assertion [A]: Glucagon is said to lower the blood sugar level.

Reason [R]: Glucagon increases the utilization of glucose in the tissues and glycogen in liver.

1. Assertion [A] is True and Reason [R] is True but is the incorrect explanation to [A].

2. Assertion [A] is True and Reason [R] is False.

3. Assertion [A] is True and Reason [R] is True and is a correct explanation to [A].

4. Reason [R] is True and Assertion [A] is False.

Q.

The hormone which regulates the amount of glucose in the blood by converting excess of glucose into glycogen is (1)_______. The hormone which regulates glucose in the blood by converting glycogen back to glucose whenever required is (2)_______.

1. Glucagon and Insulin.

2. Insulin and Somatostatin

3. Glucagon and Somatostatin

4. Insulin and Glucagon

Q. Glucagon helps in increasing the blood glucose level.

1. True
2. False

Q.

Glucagon is secreted by:

1. Alpha cells of pancreas

2. Beta cells of pancreas

3. Adrenal medulla

4. Adrenal cortex

Q. Which of the following statements regarding glucagon is false?

1. It acts antagonistically to insulin.
2. It is secreted by a heterocrine gland.
3. It is secreted by the alpha cells of the islets of Langerhans.
4. It decreases the blood sugar level.

Q. Which of the following hormones promotes glycogenolysis?

1. Glucagon
2. Insulin
3. Aldosterone
4. Adrenaline

Q. Select the odd one with respect to antagonistic pair of hormones.

1. Insulin and glucagon
2. Calcitonin and PTH
3. ANF and aldosterone
4. Cortisol and glucagon

Q. Match the following columns:

	Column I		Column II
(A)	Epinephrine	1	Stimulates the muscle growth
(B)	Testosterone	2	Decrease in blood pressure
(C)	Glucagon	3	Breakdown of liver glycogen
(D)	Atrial natriuretic factor	4	Increases heart beat

1. A-4, B-1, C-3, D-2
2. A-1, B-2, C-3, D-4
3. A-1, B-4, C-2, D-3
4. A-2, B-1, C-3, D-4