What organ requires a steady supply of glucose which is why blood glucose concentration must be maintained between meals?

What organ requires a steady supply of glucose which is why blood glucose concentration must be maintained between meals?

Liver cells

What is the concentration of glucose when blood rises?

When the concentration of glucose in the blood rises following the digestion of a meal, what is the hormonal response? Insulin is released, but glucagon is not. Response Feedback: Insulin lowers blood glucose by stimulating its uptake by cells.

What happens to glucose during the Postabsorptive state quizlet?

The primary fuel source used by the brain is glucose. During the postabsorptive state tissues other than the brain utilize fatty acids for energy, and the liver produces glucose by breaking down glycogen to glucose and converting other substrates to glucose via gluconeogenesis.

What happens to glucose during the Postabsorptive state?

As the postabsorptive state begins, glucose levels drop, and there is a corresponding drop in insulin levels. Falling glucose levels trigger the pancreas to release glucagon to turn off glycogen synthesis in the liver and stimulate its breakdown into glucose.

How glucose concentration in the blood is controlled?

The concentration of glucose in the blood is regulated by the action of the hormones insulin and glucagon . These hormones are made in the pancreas and act on cells in the liver. The liver acts as the body’s glucose ‘reservoir’.

What is the set point for blood glucose in humans?

It determines the blood glucose set point, which, in the diagram, is indicated to be 5 mmol glucose l−1.

What detects the change in blood glucose level?

When blood glucose levels drop, such as after an overnight fast, the pancreas releases a hormone called glucagon. Glucagon binds a GPCR on liver and muscle cells called the glucagon receptor, which then stimulates the cells to release glucose into the bloodstream.

How is blood glucose kept constant?

The bloodstream carries glucose-a type of sugar produced from the digestion of carbohydrates and other foods-to provide energy to cells throughout the body. Unused glucose is stored mainly in the liver as glycogen. Insulin , glucagon, and other hormone levels rise and fall to keep blood sugar in a normal range.

What happens when blood glucose levels decrease?

When blood sugar levels fall too low, the body releases the hormone adrenaline, which helps get stored glucose into the bloodstream quickly. This can make someone: pale. sweaty.