Suppose 1.00 ml of blood from a given donor contained 5 X 106 red blood cells and the donor’s hematocrit were 48%. Determine the surface area that the lipids extracted from the plasma membranes of red blood cells obtained from 10.0 ml blood would occupy on the surface of water in a Langmuir trough.

To determine the surface area occupied by the lipids extracted from the plasma membranes of red blood cells, we need to calculate the number of red blood cells in 10.0 ml of blood and then find the amount of lipids per cell.

Given information:
- 1.00 ml of blood contained 5 x 10^6 red blood cells
- Hematocrit of the donor is 48%

First, let's calculate the number of red blood cells in 10.0 ml of blood:
Since 1.00 ml of blood contains 5 x 10^6 red blood cells, we can calculate the number of red blood cells in 10.0 ml of blood using proportions:
(5 x 10^6 red blood cells) / (1.00 ml) = x red blood cells / (10.0 ml)
x = (5 x 10^6 red blood cells) × (10.0 ml) / (1.00 ml)
x = 5 x 10^7 red blood cells

Next, we need to calculate the total surface area of the extracted lipids. To do this, we need to know the amount of lipids per red blood cell.

However, the given information does not provide the exact amount of lipids per red blood cell. Without this information or a reasonable assumption, we cannot accurately calculate the surface area occupied by the extracted lipids.