Explain why insulin injections are more effective in controlling the blood glucose level in individuals with type 1 diabetes mellitus than in those with type 2 diabetes.

Verified step by step guidance

1. Understand the role of insulin: Insulin is a hormone produced by the pancreas that helps glucose enter cells from the bloodstream, thus lowering blood glucose levels.
2. Recognize the difference in diabetes types: Type 1 diabetes is characterized by the body's inability to produce insulin due to the autoimmune destruction of the insulin-producing beta cells in the pancreas.
3. Identify the cause of type 2 diabetes: In type 2 diabetes, the body still produces insulin, but cells have become resistant to its effects, a condition known as insulin resistance.
4. Explain the effectiveness in type 1 diabetes: Since individuals with type 1 diabetes produce little to no insulin, insulin injections directly replace the missing hormone, effectively lowering blood glucose levels.
5. Discuss the limited effectiveness in type 2 diabetes: Insulin injections in type 2 diabetes can help manage blood glucose levels, but they do not address the underlying issue of insulin resistance, making them less effective compared to their impact on type 1 diabetes.