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The density of the plasma membrane of a cell is found to be 1.04 g/mL. If the density of the lipid component is 0.92 g/mL and the density of the protein component is 1.37 g/mL, what is the percent composition (to the nearest whole number) of the lipid component of the membrane, assuming the plasma membrane consists only of the lipid and protein components?

Answer :

Final answer:

The density of the plasma membrane of a cell was found to be 1.04 g/ml, the percent composition of the lipid component in the cell's plasma membrane is 88%.

Explanation:

The percent composition of the lipid component of the plasma membrane can be calculated based on the density of the lipid and protein components.

Given that the density of the plasma membrane is 1.04 g/ml, the density of the lipid component is 0.92 g/ml, and the density of the protein component is 1.37 g/ml, we can use the formula:

Percent composition of lipid component = (Density of lipid / Density of plasma membrane) * 100%

Substituting the values into the formula:

Percent composition of lipid component = (0.92 / 1.04) * 100%

Simplifying the calculation:

Percent composition of lipid component = 0.8846 * 100%

Rounding the result to the nearest ones:

Percent composition of lipid component = 88%

So therefore the percent composition of the lipid is 88%.

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