A semipermeable membrane that controls what goes in and what goes out, separates the interior of the cell from the outside environment, and is also known as “plasma membrane”.

Outer protective membrane that provides protection, made of cellulose, prevents water loss, and defines the shape and structure of the cell.

Flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings.

Process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated.

A state of balance between opposing forces or actions

Diffusion of H2O through a semipermeable membrane, from higher concentration to low concentration. (Diffusion of water)

When the concentration of two solutions is the same.

When comparing two solutions, the solution with the greater concentration of solutes. (More solute, less water)

When comparing two solutions, the solution with the lesser concentration of solutes. (Less solute, more water)

Facilitated diffusion

The transport of substances across a cell’s membrane from higher concentration to an area of lower concentration with the help of membrane proteins, such as channels and carriers.

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Biology Chapter 7C

Part 3 of Chapter 7 Vocab.

Term	Definition
*Cell Membrane	A semipermeable membrane that controls what goes in and what goes out, separates the interior of the cell from the outside environment, and is also known as “plasma membrane”.
*Cell Wall	Outer protective membrane that provides protection, made of cellulose, prevents water loss, and defines the shape and structure of the cell.
Lipid bilayer	Flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings.
Diffusion	Process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated.
Equilibrium	A state of balance between opposing forces or actions
Osmosis	Diffusion of H2O through a semipermeable membrane, from higher concentration to low concentration. (Diffusion of water)
Isotonic	When the concentration of two solutions is the same.
Hypertonic	When comparing two solutions, the solution with the greater concentration of solutes. (More solute, less water)
Hypotonic	When comparing two solutions, the solution with the lesser concentration of solutes. (Less solute, more water)
Facilitated diffusion	The transport of substances across a cell’s membrane from higher concentration to an area of lower concentration with the help of membrane proteins, such as channels and carriers.

Created by: Sammygaga

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