1.4 - Cell Membrane

Question 1

Cell Membrane

Answer 1

A protective barrier around the cell composed of a phospholipid bilayer that regulates which materials can pass in or out

Question 2

Extracellular Fluid

Answer 2

The fluid on the exterior of the cell

Question 3

Glycocalyx

Answer 3

A fuzzy-appearing coating around the cell formed from glycoproteins and other carbohydrates attached to the cell membrane which function in cell recognition communication or enzymatic activity

Question 4

Glycoprotein

Answer 4

A protein that has carbohydrate molecules attached to the external side (glyco-glucose)

Question 5

Integral Membrane Protein

Answer 5

A protein that is permanently embedded in the cell membrane

Question 6

Interstitial Fluid

Answer 6

Extracellular fluid not contained within blood vessels

Question 7

Intracellular Fluid

Answer 7

The fluid on the interior of the cellL

Question 8

Ligand

Answer 8

A specific molecule that can be bound by a receptor initiating a chemical reaction inside the cell

Question 9

Peripheral Protein

Answer 9

A membrane protein located on the inner or outer surface of the phospholipid bilayer but can also be attached to the internal or external surface of an integral protein

Question 10

Receptor

Answer 10

A type of transmembrane protein that can selectively bind a specific molecule (ligand) on the outside of the cell and induce a chemical reaction inside the cell

Question 11

Transmembrane Protein

Answer 11

One type of integral membrane protein which is exposed on both the internal and external side of the cell membrane