Membrane Proteins Flashcards Preview

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Flashcards in Membrane Proteins Deck (10):
1

State the primary function of the cell membrane

The cell membrane is semi permeable and controls what goes in and out of the cell

2

Receptor Proteins

communicate signals between the cell's internal and external environments (EX: Insulin Receptor Protein)

Can be integral or peripheral

3

Transport Proteins

move ions and molecules across the membrane (Ex: Aquaporin tranports water)

4

Enzyme Proteins

Promote chemical reactions that synthesize or break apart biological molecules.

Can be integral or peripheral

5

Adhesion Proteins

Anchors the cell membrane to the inner cytoskeleton or proteins outside the cell as well as to other cells.

(EX: Cadherin)


Can be integral or peripheral

6

Recognition Proteins

Serve as identification tags on the surface of a cell. Often times these are glycoproteins (EX: MHC proteins)

Can be integral or peripheral

7

Channel Proteins

-Serve as pores/tunnels for large or hydrophilic molecules to be passively transported into or out of the membrane
(High to Low) (EX: Glucose channel protein.)

ALL are integral

8

Passively

NO energy required

9

Glycoproteins

Proteins with a attached sugar molecules

10

Pump Proteins

Are used for active transport of molecules (From low to high)

ALL are integral