EVERYDAY SCIENCE

Detailed explanation-1: -Simple diffusion – movement of small or lipophilic molecules (e.g. O2, CO2, etc.) Osmosis – movement of water molecules (dependent on solute concentrations) Facilitated diffusion – movement of large or charged molecules via membrane proteins (e.g. ions, sucrose, etc.)

Detailed explanation-2: -There are three passive transportation methods-diffusion, facilitated diffusion and osmosis.

Detailed explanation-3: -Channel proteins, gated channel proteins, and carrier proteins are three types of transport proteins that are involved in facilitated diffusion. A channel protein, a type of transport protein, acts like a pore in the membrane that lets water molecules or small ions through quickly.

Detailed explanation-4: -There are three main active transport methods-ion pumps, exocytosis and endocytosis.

Detailed explanation-5: -Phagocytosis, pinocytosis, and sodium-potassium pump are examples of active transport while diffusion, facilitated diffusion and osmosis are examples of passive transport. 2.