Structure Of Plasma Membrane Flashcards Preview

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Flashcards in Structure Of Plasma Membrane Deck (17):
1

Fluid mosaic model

The arrangement of molecules within the membrane resembles a sea of lipids containing many types of proteins

2

Lipids

Act as a barrier to certain substances

3

Proteins

"Gatekeepers" to certain molecules and ions

Security guard to the cell club

4

Plasma membrane

Another name: cell

Flexible yet sturdy: fluid inside and out

5

How many macromolecules in any living thing?

4
Carbohydrates
Fats/lipids
Nucleic acid: dna
Protein

6

Lipid bilayer

Blue balls: phosphate
Red tails: fatty acids

7

Integral proteins

Also called transmembrane proteins

Glycoproteins (sugar)

Goes all the way through: inside and outside

Some are ion channels (charged and electricity)

8

Proriferal protein

On the outside

9

Eytosol

Jellylike fluid inside cell

10

Cholestoral

Holds phospholipid bilayer together

11

Receptors

Cellular recognition

12

Ligand

Specific molecule that binds w a receptor

13

Enzymes

Catalyze chemical reactions

Speeds up

14

What opens an ion channel

Nervous system

15

What opens a ligand channel

Hormone chemical

16

Are all enzymes proteins?

Yes. But not all proteins are enzymes.

17

Selective permeable

Not all things can get in.

Fluid mosaic model