Cell Membrane Vocabulary

The ability of a cell to maintain a balance of food, water, and wastes within the cell.

Molecules must be dissolved in this in order to cross the cell membrane.

Simple diffusion, Osmosis, and Facilitated diffusion

The movement of substances across a cell membrane WITHOUT the use of cellular energy.

The movement of WATER across a membrane

Occurs when molecules of one substance are evenly spread throughout another substance

A protein found in the cell membrane that helps carry large molecules, like glucose, across the cell membrane; this protein plays a role in facilitated diffusion

A membrane that is capable of being passed through by some substances but NOT everything; its picky or selective

Food is converted into this liquid sugar that the mitochondria converts into energy {ATP} used to run the happenings of the cell

Fats that make up part of the cell membrane

Requiring NO energy cellular energy, this type of diffusion helps move large molecules, like Glucose, across the cell membrane through transport proteins found in the cell membrane

A membrane that is capable of being passed through by anything

The movement of substances across a cell membrane USING cellular energy

A membrane that is NOT capable of being passed through by anything

A membrane-bound sac where large molecules of food, liquids, and wastes are packaged to be sent throughout the cell or out of the cell