Can the rates of Diffusion, Osmosis and Active transport be affected?

Yes Surface area: Volume ratio. The smaller a object can be, the higher the ratio is. This can help it diffuse more effectivley and quicker Temperature: When it gets hotter, particles gets more energy, kinetic energy. They move around quicker which means they can go in/out quicker Concentration Gradient: If the line is steeper, the particles quantity will be increased in terms of moving across.