GCSE Biology - Control of Blood Glucose Concentration #56

The video explains how blood glucose concentration is regulated by insulin and glucagon. Insulin lowers blood glucose by promoting uptake into cells, while glucagon raises it by converting glycogen to glucose. These hormones work in a negative feedback loop to maintain glucose levels within a normal range, preventing damage from high levels and ensuring sufficient supply for cellular respiration.

What hormones are responsible for controlling glucose concentration in the blood?

Explain the process that occurs when blood glucose concentration increases after a meal.

What is the difference between glucagon and glycogen?

How does the body respond to low levels of glucose in the bloodstream?

Describe the negative feedback loop involving insulin and glucagon.