The plasma membrane is composed of:

The cell membrane is composed of which substances?

Which statement is incorrect regarding the cell membrane?

The Nobel Prize of $1991$ for discovering single ion channels in cells was awarded to:

The plant cell cytoplasm is surrounded by both cell wall and cell membrane. The specificity of transport of substances is mostly across the cell membrane,because $..........$

Keeping in view the 'fluid mosaic model' for the structure of the cell membrane,which one of the following statements is correct with respect to the movements of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?