Question

classify each of the following types of transport by those that require energy and those that require no energy. drag the answers to the correct boxes. osmosis diffusion facilitated diffusion active transport requires energy requires no energy

Explanation:

• Osmosis is the movement of water molecules from an area of high water concentration to an area of low water concentration across a semi - permeable membrane. It is a passive process and does not require energy.
• Diffusion is the movement of molecules (other than water in the case of osmosis) from an area of high concentration to an area of low concentration. It is a passive process and does not require energy.
• Facilitated diffusion is a type of passive transport where molecules move across the cell membrane with the help of transport proteins. It does not require energy as it still follows the concentration gradient.
• Active transport is the movement of molecules against the concentration gradient (from low to high concentration). This process requires energy (usually in the form of ATP) to move the molecules.

Answer:

• Requires Energy: active transport
• Requires No Energy: osmosis, diffusion, facilitated diffusion