Q. The lipid molecules present in plasma membrane have polar heads and non-polar tails (as shown in figure). Which option represents the correct arrangement of lipids in lipid bilayer?

A) [image:8_image17.emf]
B) [image:8_image18.emf]
C) [image:8_image19.emf]
D) [image:8_image20.emf]
Explanation

Lipids are arranged in bilayers and proteins are embedded in it. Lipids are arranged within the membrane with polar head towards the outer side while hydrophobic tails towards the inner side

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.