Question
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What is insulin?

Verified Answer

Insulin is a hormone produced by the pancreas that helps regulate the level of glucose (sugar) in the blood. It allows body cells to absorb glucose and use it for energy.

Insulin is essential for maintaining normal blood sugar levels and proper body functioning.

Functions of Insulin

1. Controls Blood Sugar Level

Insulin lowers blood glucose by helping cells absorb sugar from the bloodstream.

2. Provides Energy

After glucose enters cells, it is used to produce energy for body activities.

3. Stores Excess Glucose

Insulin helps store extra glucose in the liver and muscles in the form of glycogen.

4. Maintains Metabolic Balance

It supports normal metabolism of carbohydrates, fats, and proteins.

How Insulin Works

  1. Food is digested into glucose

  2. Glucose enters the bloodstream

  3. The pancreas releases insulin

  4. Insulin helps cells absorb glucose

  5. Blood sugar level returns to normal

Importance of Insulin

Insulin is important because it:

  • Prevents high blood sugar levels

  • Provides energy to body cells

  • Maintains metabolic balance

  • Supports normal organ function

Insulin Deficiency

If the body produces little or no insulin, glucose remains in the blood, leading to diabetes mellitus.

Common symptoms of diabetes:

  • Frequent urination

  • Increased thirst

  • Fatigue

  • Weight loss

Proper diet, exercise, and medical treatment help manage insulin-related disorders.