What is true about osmosis? - None of the choices - Both A and B - Diffusion of water through a semi-permeable membrane - It is a passive process

Answer

The correct answer is 'Both A and B' (assuming 'A' and 'B' refer to the two descriptive choices provided). Osmosis is defined by two fundamental characteristics: 1. It is the diffusion of water through a semi-permeable membrane from an area of higher water concentration to an area of lower water concentration. 2. It is a passive process, meaning it does not require cellular energy (ATP) to occur, as it relies on the kinetic energy of particles moving down their concentration gradient. Since both descriptive statements are true, the option indicating 'Both' is the correct selection.