Question

lo 1.3. what does the pancreas produce?
histamine to aid in an immune response.
bile to aid in digestion.
glucagon to lower blood sugar levels.
insulin to regulate blood sugar levels.
melatonin to regulate sleep patterns.

Explanation:

The pancreas is an organ with both endocrine and exocrine functions. In its endocrine role, it produces hormones. Insulin is one of the key hormones produced by the pancreas (specifically by the beta cells of the islets of Langerhans). Insulin helps regulate blood sugar levels by facilitating the uptake of glucose by cells.

• Histamine is mainly produced by mast cells and basophils (not the pancreas) and is involved in immune responses and allergic reactions.
• Bile is produced by the liver (not the pancreas) and aids in the digestion of fats.
• Glucagon (also produced by the pancreas, but by alpha cells of the islets of Langerhans) raises blood sugar levels (not lowers, which is a common point of confusion).
• Melatonin is produced by the pineal gland (not the pancreas) and is involved in regulating sleep - wake cycles.

Answer:

Insulin to regulate blood sugar levels.