AP BIOLOGY

Detailed explanation-1: -So the right answer for this question is option B passive transport.

Detailed explanation-2: -It is possible for large molecules to enter a cell by a process called endocytosis, where a small piece of the cell membrane wraps around the particle and is brought into the cell. If the particle is solid, endocytosis is also called phagocytosis.

Detailed explanation-3: -Summary. Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane. Channel proteins, gated channel proteins, and carrier proteins are three types of transport proteins that are involved in facilitated diffusion.

Detailed explanation-4: -In facilitated transport, also called facilitated diffusion, material moves across the plasma membrane with the assistance of transmembrane proteins down a concentration gradient (from high to low concentration) without the expenditure of cellular energy.

Detailed explanation-5: -Channel proteins do not consume any energy as they only transport proteins down the concentration gradient. Carrier proteins only require energy when transporting molecules against the concentration gradient.