Questions: What is insulin? A disease in which the body does not tolerate gluten A disease in which the body does not control the amount of glucose in the blood A hormone that aids the process menopause A hormone that helps glucose in the blood enter cells to give them energy.

The answer is the last one: A hormone that helps glucose in the blood enter cells to give them energy.

Explanation for each option:

1. "A disease in which the body does not tolerate gluten" - This describes celiac disease, not insulin. Celiac disease is an autoimmune disorder where the ingestion of gluten leads to damage in the small intestine.

2. "A disease in which the body does not control the amount of glucose in the blood" - This describes diabetes, not insulin. Diabetes is a condition where the body either does not produce enough insulin or cannot effectively use the insulin it produces, leading to high blood sugar levels.

3. "A hormone that aids the process menopause" - This is incorrect. Insulin is not related to menopause. Menopause involves changes in hormones such as estrogen and progesterone.

4. "A hormone that helps glucose in the blood enter cells to give them energy" - This is the correct description of insulin. Insulin is a hormone produced by the pancreas that allows cells to take in glucose from the blood, which is then used for energy.

In summary, insulin is a hormone that plays a crucial role in regulating blood glucose levels by facilitating the uptake of glucose into cells.