Consider the following statements about insulin: 1. It is produced by the liver. 2. It helps regulate blood sugar levels. 3. Its deficiency can lead to harmful elevation of blood sugar. Which of the statements given above is/are correct?

Correct Option The correct option is 2 and 3 only. Explanation Insulin is a peptide hormone secreted by the pancreas. It plays a central role in the regulation of carbohydrate and fat metabolism in the body by controlling blood glucose levels. Statement-wise Analysis - Statement 1 is Incorrect: Insulin is not produced by the liver. It is produced by the beta cells of the Islets of Langerhans located in the pancreas. The liver is a target organ for insulin, where it promotes the storage of glucose as glycogen. - Statement 2 is Correct: Insulin regulates blood sugar levels by facilitating the uptake of glucose into cells (muscle and adipose tissue) and inhibiting the production of glucose by the liver. This process lowers blood glucose concentration. - Statement 3 is Correct: A deficiency in insulin production or the inability of cells to respond to insulin leads to a condition known as Diabetes Mellitus. This results in hyperglycemia (harmful elevation of blood sugar), which can cause long-term damage to various organs. Key Takeaway Insulin is secreted by the pancreas (beta cells) and lowers blood glucose levels. Its deficiency leads to Diabetes Mellitus. Conversely, Glucagon (alpha cells) raises blood glucose levels.

NCERT Class 10 Science — Chapter 2: Control and Coordination

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Consider the following statements about insulin:

It is produced by the liver.
It helps regulate blood sugar levels.
Its deficiency can lead to harmful elevation of blood sugar.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A2 and 3 only
B1 and 2 only
C1, 2 and 3
D2 only

Did you get this right?

Solution

Correct Option

The correct option is 2 and 3 only.

Explanation

Insulin is a peptide hormone secreted by the pancreas. It plays a central role in the regulation of carbohydrate and fat metabolism in the body by controlling blood glucose levels.

Statement-wise Analysis

Statement 1 is Incorrect: Insulin is not produced by the liver. It is produced by the beta cells of the Islets of Langerhans located in the pancreas. The liver is a target organ for insulin, where it promotes the storage of glucose as glycogen.
Statement 2 is Correct: Insulin regulates blood sugar levels by facilitating the uptake of glucose into cells (muscle and adipose tissue) and inhibiting the production of glucose by the liver. This process lowers blood glucose concentration.
Statement 3 is Correct: A deficiency in insulin production or the inability of cells to respond to insulin leads to a condition known as Diabetes Mellitus. This results in hyperglycemia (harmful elevation of blood sugar), which can cause long-term damage to various organs.

Key Takeaway

Insulin is secreted by the pancreas (beta cells) and lowers blood glucose levels. Its deficiency leads to Diabetes Mellitus. Conversely, Glucagon (alpha cells) raises blood glucose levels.

Your note

More from Chapter 2: Control and Coordination

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Which part of the human brain is primarily responsible for maintaining posture, balance, and equilibrium, such as when riding a bicycle?

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Consider the following about rapid leaf-folding in a sensitive plant: 1. It is strictly dependent on directional growth. 2. Information transmission occurs without specialised conduction tissue. 3. Cells change their shape by altering their protein structure. Which of the above are correct?

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Assertion (A): Auxin is synthesised at the shoot tip and helps the cells to grow longer. Reason (R): When light is coming from one side of the plant, auxin diffuses towards the illuminated side of the shoot.

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Match the plant hormone with its primary effect: List I | List II A. Auxin | 1. Promotes rapid cell division B. Gibberellins | 2. Inhibits growth and causes wilting C. Cytokinins | 3. Promotes growth of stem D. Abscisic acid | 4. Promotes cell elongation and bending towards light Select the correct answer using the code given below

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Correct Option

The correct option is 2 and 3 only.

Explanation

Insulin is a peptide hormone secreted by the pancreas. It plays a central role in the regulation of carbohydrate and fat metabolism in the body by controlling blood glucose levels.

Statement-wise Analysis

Statement 1 is Incorrect: Insulin is not produced by the liver. It is produced by the beta cells of the Islets of Langerhans located in the pancreas. The liver is a target organ for insulin, where it promotes the storage of glucose as glycogen.
Statement 2 is Correct: Insulin regulates blood sugar levels by facilitating the uptake of glucose into cells (muscle and adipose tissue) and inhibiting the production of glucose by the liver. This process lowers blood glucose concentration.
Statement 3 is Correct: A deficiency in insulin production or the inability of cells to respond to insulin leads to a condition known as Diabetes Mellitus. This results in hyperglycemia (harmful elevation of blood sugar), which can cause long-term damage to various organs.