AP BIOLOGY

Detailed explanation-1: -Three transport processes that do not require energy are; diffusion, osmosis and facilitated diffusion. Facilitated diffusion is a passive process: the solutes move down their concentration gradient and do not require the expenditure of cellular energy for this process.

Detailed explanation-2: -Passive transport does not require the cell to expend any energy and involves a substance diffusing down its concentration gradient across a membrane.

Detailed explanation-3: -Passive transport: This does not require any energy expenditure as it occurs along the concentration gradient of the molecule being translocated. Examples include simple diffusion, facilitated diffusion, and osmosis.

Detailed explanation-4: -Both diffusion and osmosis do not require energy because the substances move down the concentration gradient, from high to low concentration.

Detailed explanation-5: -Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.