Plasma Membrane (Exam 1) Flashcards Preview

Spring of 2012 > Plasma Membrane (Exam 1) > Flashcards

Flashcards in Plasma Membrane (Exam 1) Deck (7)
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General characteristics

Outermost component of a cell
Responsible for the ability of a cell to connect, recognize, and communicate with each other
Inside-intracellular
Outside-extra cellular

1

Lipids

40-50%
Phospholipids- lipid bilayer
Cholesterol- interspersed between phospholipids, prevents fatty acids from sticking together, maintains fluidity of the membrane

2

Proteins

45-50%
Suspended within the membrane

3

Integral protein

Inserted all the way through the membrane, can communicate with ICF and ECF at the same time

4

Peripheral protein

Attached to either the inner or the outer surface of the membrane

5

Functions of proteins

Attachment sites
Ion channels
Receptor molecules
Marker molecules

6

Carbohydrates

CHO+lipid= glycolipid
CHO+protein= glycoprotein

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