Question

1. complete the following chart below about passive transport, which is the type of movement of molecules across the cell membrane that does not require energy. (slides 6 - 8, membrane transport and osmosis slides )

passive transport
****no energy is required
simple diffusion facilitated diffusion osmosis
definition

Explanation:

Simple diffusion is the movement of molecules from an area of high concentration to an area of low concentration directly through the cell - membrane. Facilitated diffusion is the movement of molecules from an area of high concentration to an area of low concentration with the help of transport proteins in the cell - membrane. Osmosis is the diffusion of water molecules across a semi - permeable membrane from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration).

Answer:

Simple Diffusion: The movement of molecules from an area of high concentration to an area of low concentration directly through the cell - membrane.
Facilitated Diffusion: The movement of molecules from an area of high concentration to an area of low concentration with the help of transport proteins in the cell - membrane.
Osmosis: The diffusion of water molecules across a semi - permeable membrane from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration).