Mosaic Model

Question 1

Structure

Answer 1

Phosphilipd bilayers - 2 layers of phospholipid molecules

Question 2

Cell membrane Composition

Answer 2

Composed of a phosphate head and 2 lipid tails

Question 3

Within the bilayer

Answer 3

Carbs- glycolipid, glycoprotein
Cholesterol
Proteins- integral (permanent), peripherl (temporary)

Question 4

Seperate

Answer 4

Separates contents of the cell from the external environment
Intracellular fluid- cytoplasm
Extracellular fluid- waterery environment outside cell

Question 5

Eukaryotes

Answer 5

Organelles (endoplasmic reticulum, golgi body) -membranes are used to create compartments within the cell

Question 6

Regulate

Answer 6

Cell membranes able to control which substances go through it - regulates contents of the cell

Question 7

Semi-permeable

Answer 7

Which allows certain molecules to pass through via passive or active transport

Question 8

Communicate

Answer 8

Involved in cell recognition and communication
Glycoproteins, glucolipds, and integral proteins are responsible for this