When molecules are very large or are being moved against their concentration gradient, energy is required to move molecules across a cell membrane. this type of movement is best described as: ?

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule