Transverse diffusion (flip-flop) is the movement due to which of the following molecules?
Correct answer: B. Phospholipid
- A. Cholesterol molecule
- B. Phospholipid
- C. Protein
- D. Amino acid
Explanation
Transverse diffusion, or flip-flop, is a process in which phospholipid molecules move from one leaflet of the lipid bilayer to the other. This is a rare and slow process due to the energy barrier imposed by the hydrophobic core of the membrane. Phospholipids are capable of this movement, whereas other molecules such as cholesterol, proteins, and amino acids do not typically undergo flip-flop due to their structural properties or functional roles in the membrane.
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