You place water containing a radioactive isotope of hydrogen on the outside of a cell.Which of the following will increase the rate at which radioactive water appears on the inside of the cell?

Question

Quizplus · Accepted Answer

The presence of unsaturated fatty acids in the phospholipid bilayer of the cell membrane increases its fluidity, allowing for easier diffusion of molecules across it. Therefore, an increase in unsaturated fatty acids would increase the rate at which the radioactive water diffuses from the outside to the inside of the cell. Temperature, fatty acid tail length, and membrane surface area do not directly affect the fluidity of the membrane and therefore would not have a significant impact on the rate of diffusion in this scenario.

You Place Water Containing a Radioactive Isotope of Hydrogen on the Outside