Components Of Plasma Membrane

Question 1

Phospholipid bilayer

Answer 1

A structural component of cell membranes consisting of two layers of phospholipid molecules arranged with their hydrophilic (polar) heads facing outward and their hydrophobic (nonpolar) tails facing inward, forming a barrier between the cell’s interior and exterior environments

Question 2

Hydrophilic (polar) heads & Hydrophobic (non polar) tails

Answer 2

head (phosplate group) - hydrophilic (attracted to the water) / polar

tails (2 fatty acid tails) - hydrophobic (fear of water) / non - polar

Question 3

Cholesterol

Answer 3

Embedded within the phospholipid bilayer, contributing to membrane stability and fluidity.

Question 4

Carbohydrate

Answer 4

Attached to proteins or lipids on the extracellular side, involved in cell recognition, signaling, and adhesion.

Question 5

Glycolipid

Answer 5

Lipid molecule with attached carbohydrate chains, found on the extracellular side, involved in cell recognition and interactions.