In the years since the proposal of the fluid mosaic model of the cell membrane, which of the following observations has been added to the model?
A) The membrane is only fluid across a very narrow temperature range.
B) Proteins rarely move, even though they possibly can do so.
C) Unsaturated lipids are excluded from the membranes.
D) The concentration of protein molecules is now known to be much higher.
E) The proteins are known to be made of only acidic amino acids.

Question

Quizplus · Accepted Answer

The fluid mosaic model has been updated to reflect that the concentration of proteins in the membrane is much higher than initially thought. This adjustment acknowledges the complex and dense protein network within the membrane, which plays crucial roles in various cellular processes.

In the Years Since the Proposal of the Fluid Mosaic