Which of the following is true regarding membrane asymmetry?

Question

Quizplus · Accepted Answer

Membrane asymmetry refers to the distinct composition of lipids and proteins between the inner and outer leaflets of a biological membrane. Transverse diffusion (flip-flop) of lipids across the membrane is very slow without the aid of specific enzymes, not quick as stated in A. Lateral diffusion, the movement of lipids within the same leaflet, occurs much more rapidly than transverse diffusion, contradicting B. Flippases facilitate the transverse diffusion (flip-flop) of lipids from one leaflet to the other, not lateral diffusion as mentioned in C. Carbohydrates attached to membrane lipids and proteins are typically found on the extracellular side of the plasma membrane, not the cytosolic side, making D incorrect.

Which of the Following Is True Regarding Membrane Asymmetry