Question

Processes that do not require energy for the movement of particles are

a. Diffusion and free transport
b. Osmosis and active transport
c. Diffusion and osmosis
d. Diffusion and active transport

Answer 1

Answer:

An input of energy is required in the process of active transport as it involves the movement of ions or molecules across a cell membrane from low to high concentration. The movement requires energy to maintain the electrochemical gradient.

So, the correct option is 'Active transport

Answer 2

Explanation:

Diffusion process does not require energy and thus it is passive transport. Osmosis is a process in which the solvent molecules move from lower solute concentration to higher solute concentration through a semi-permeable membrane. This process does not require energy.