Unit 6 Vocabulary Part 2

Front

Osmosis

Back

The diffusion of water through a cell membrane.

Front

What is Homeostasis?

Back

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

Front

Selectively Permeable

Back

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

Front

Active Transport

Back

Movement of molecules across a cell membrane that requires energy, low to high concentration.

Front

Nutrients

Back

Substance that provides nourishment for growth and maintenance of life.

Front

Diffusion

Back

Movement of molecules across a cell membrane from high to low concentration.

Front

Passive Transport

Back

Movement of molecules across a cell membrane without the use of energy.

Front

Cell Membrane

Back

A structure that surrounds the cell, controlling what enters and exits.

Front

Eukaryotic Cells

Back

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

Front

Concentration Gradient

Back

A difference in the concentration of a substance across a space.