5.1 Components and Structure

Question 1

fluid mosaic model

Answer 1

describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.

Question 2

glycoproteins

Answer 2

combination of carbohydrates and proteins

Question 3

glycolipids

Question 4

amphiphilic

Answer 4

“dual-loving”
molecule with a positively or
negatively charged area and an uncharged, or non-polar, area

Question 5

Integral proteins

Answer 5

integrate completely into the membrane structure, and their hydrophobic membrane-spanning regions interact with the phospholipid bilayer’s hydrophobic region

Question 6

Peripheral proteins

Answer 6

On the phospholipid bilayer’s inner or outer surface; not embedded within the phospholipids