Unit 6 Vocabulary Part 2

Front

Nutrients

Back

Substance that provides nourishment for growth and maintenance of life.

Front

Cell membrane

Back

The outside boundary of the cell that allows substances to enter and leave the cell.

Front

Homeostasis

Back

The ability of the body to maintain a stable internal environment despite changes in external conditions.

Front

Osmosis

Back

The diffusion of water through a cell membrane.

Front

Selectively Permeable

Back

A cell membrane allowing some items to enter the cell but not all items.

Front

Diffusion

Back

Movement of molecules from an area of high concentration to an area of low concentration.

Front

Passive Transport

Back

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

Front

Active Transport

Back

The movement of substances against their concentration gradient, requiring energy.

Front

Eukaryotic Cells

Back

Cells that have a nucleus and other membrane-bound organelles.

Front

Prokaryotic Cells

Back

Cells that do not have a nucleus or other membrane-bound organelles.