Explain how receptor binding alters cellular activity, recognising that a cell’s sensitivity to a specific hormone is directly related to the number of receptors it displays for that hormone.

A patient with type 2 diabetes has liver cells displaying approximately 20,000 insulin receptors per cell, while their muscle cells display approximately 5,000 insulin receptors per cell. Both cell types are exposed to the same blood insulin concentration of 0.5 nmol/L. Explain how the difference in receptor number affects the sensitivity of liver cells compared to muscle cells to insulin.

A research study investigated the response of liver cells to insulin at different receptor densities. Cells with 15,000 insulin receptors per cell showed a glucose uptake rate of 8.2 μmol/min, while cells with 45,000 receptors per cell showed a glucose uptake rate of 24.8 μmol/min when exposed to the same insulin concentration. Explain how the number of insulin receptors on the liver cell surface influences the cell's response to insulin.

A liver cell displays 8,000 insulin receptors on its membrane, while a skeletal muscle cell displays 2,000 insulin receptors. Both cells are exposed to the same concentration of insulin in the bloodstream. Which statement best explains the relationship between receptor number and cellular response?

A researcher measures insulin receptor density on skeletal muscle cells from two individuals. Individual X has 8,500 insulin receptors per cell, while Individual Y has 3,200 receptors per cell. Both individuals are exposed to the same concentration of insulin in their bloodstream (0.5 nmol/L). Which statement best explains the expected difference in cellular glucose uptake between these two individuals?