A spherical lipid nanoparticle is designed for drug delivery. A cross-section through the center (the widest part) of this nanoparticle shows exactly 252525 phospholipid molecules making up its circular outer boundary.
Calculate the estimated number of phospholipid molecules on the entire outer surface of this spherical nanoparticle.
Assume the distribution of phospholipids is uniform across the entire outer surface of the lipid nanoparticle.
Use the formula: Surface area of a sphere=4πr2\text{Surface area of a sphere} = 4\pi r^2Surface area of a sphere=4πr2
12 exam-style questions on OCR A A Level Biology Biological membranes. Each one has a worked solution and a mark scheme showing where the marks go.