Biology Final Vocabulary

Front

Macromolecule

Back

Large molecules formed by joining smaller organic molecules together.

Front

Polymer

Back

Molecules made from repeating units of identical or nearly identical compounds called monomers.

Front

Diffusion

Back

The net movement of particles from an area of high concentration to an area of lower concentration.

Front

Dynamic equilibrium

Back

Molecules continue to move, but the concentration remains the same.

Front

Facilitated diffusion

Back

Uses transport proteins to move ions and small molecules across the plasma membrane.

Front

Osmosis

Back

The diffusion of water across a selectively permeable membrane.

Front

Isotonic solution

Back

Has the same concentration of water and solutes as the cytoplasm and the cell.

Cell remains the same

Front

Hypotonic solution

Back

Has a lower concentration of solutes than the cytoplasm of the cell.

Cell size increases and may burst. Water moves from the cell

Front

Hypertonic solution

Back

Has a higher concentration of solutes than the cytoplasm of the cell.

Cell Shrinks - Water moves out of the cell

Front

Endocytosis

Back

The process by which a cell surrounds an object in the outside environment in a portion of the plasma membrane.