The correct answer is: D. All of the above.
Explanation:
1. Insulin is secreted after eating: When you eat, especially foods high in carbohydrates, your blood sugar levels rise. In response to this increase, the pancreas releases insulin to help regulate blood sugar levels by allowing cells to take in glucose for energy or storage.
2. Insulin breaks down stored nutrients: Insulin helps in the storage of nutrients, especially glucose. It promotes the uptake of glucose by cells for immediate energy use or converts excess glucose into glycogen for storage in the liver and muscles.
3. Insulin lowers blood sugar levels: One of the main functions of insulin is to reduce blood sugar levels by facilitating the uptake of glucose from the blood into cells. This process helps to maintain stable blood sugar levels within a healthy range.
Therefore, all of the statements (A, B, and C) accurately describe the functions and roles of insulin in the body.
