| A | B |
|---|
| Active Transport | The movement of a substance across a cell membrane against a concentration gradient; requires the cell to expend energy |
| Carrier Proteins | A protein that transports specefic substances across a biological membrane |
| Diffusion | the process by which molecules move from an area of greater concentration to an area of lesser concentration |
| Equilibrium | A state that exist when the concentration of a substance is the same throughout a space |
| Osmosis | the diffusion of water across a selectively permeable membrane |
| Passive Transport | The movement of substances across a cell membrane without the use of cell energy |
| Sodium-Potassium Pump | A carrier protein that actively transports K+ ions into and Na+ ions out of the cells |
| Cell Membrane | Selectively permeable, controls what substances move in and out of the cell |
| Engulfing | A method of active transport to move large particles into the cell. |
| Carbohydrate | Provides energy to living things. Ex: sugars and starches. |
| Proteins | Build cell/body parts. Made from amino acids. |
| Lipids | Store energy for later use. Ex: fats and oils. |
| Nucleic Acids | Contain instructions for all cellular functions. Ex: DNA and RNA |
| Enzyme | A type of protein that can speed up chemical reactions. |
