Question

Insulin is
A. An amino acid
B. Protein
C. A carbohydrate
D. A lipid

Answer 1

Hint: Insulin plays a significant role in the functioning of our body. Its role is to maintain blood sugar levels. It can be natural or artificial. Insulin is a hormone whose secretion is done by the pancreas of our body.

Complete Step by Step Solution:
Let's understand the insulin hormone in detail. Insulin belongs to the category of a protein whose structure is composed of 51 numbers of amino acids in two chains.

Let's understand how the insulin hormone regulates the sugar level of the blood. Whenever we consume a diet full of glucose and carbohydrates, it leads to an increase in sugar levels. There are two hormones insulin and glucagon which play a role in controlling the sugar level. Whenever an increase of blood sugar level occurs, the pancreas signals all the cells to utilise the increased glucose.
Therefore, insulin is a protein.Hence, option B is right.

Additional Information:
The production of insulin hormone is done by the beta cells of the pancreas. Insulin triggers absorption of blood sugar by muscle, liver, and fat cells. The high sugar level in the blood sensitises beta cells to secrete insulin. In normal times, insulin secretion is low. Insulin enhances glucose uptake and metabolism in the cells. Thus, insulin reduces the glucose level in the blood.

Note: The decrease of glucose in blood results in a condition called hypoglycemia. Also, the increased glucose level in the blood causes diabetes. So, the blood sugar level needs to be maintained to stay away from harmful consequences.