Ch. 3 Objective: Define a cell, identify its three regions by their function, and describe the structure of a cell membrane

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What are the two types of membrane proteins?

integral proteins and peripheral proteins

Peripheral proteins

loosely attached to integral proteins. These proteins are responsible for shape.

What does the cell membrane do?

controls what goes in and out of the cell

Interstitial fluid

Fluid that surrounds cells

Intracellular fluid

Fluid that's found inside a cell

Extracellular fluid

Fluid that's found outside the cell

Cytoplasm

Free floating fluid/jelly like substance

The plasma membrane acts as a barrier and separates what two fluids from each other?

Intracellular fluid and extra cellular fluid

Cell membrane is another word for

Plasma membrane

What are the three basic parts/regions of cells?

Plasma membrane, cytoplasm, nucleus.

Plasma membrane

The outer layer of the cell

What builds and makes up the cell (plasma) membrane?

The phospholipid bilayer

Cell

The structural and functional unit of life

Integral proteins

these proteins allow transportation of information in and out of the dell


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