Question

based on the fluid mosaic model of the cell membrane, which type of molecule can move passively across the membrane, without the aid of proteins?

Answer 1

Answer:

My guess would be H₂O/ water, since osmosis is a form of passive transport and I can't see the model the question references. Gases like O₂/ oxygen, CO₂/ carbon dioxide, and simple sugars like glucose can also pass through a cell membrane with passive transport though.