Question

What is the unit 'A' when talking about a cell?
Usage: Thickness of the plasma membrane varies from 75-110 A.

Answer 1

Answer:

10 nm

"Membranes are typically 7.5–10 nm in thickness with two regular layers of lipid molecules (a bilayer) containing various types of protein molecules." Chen, Aileen, & Vincent T. Moy. Cross-Linking of Cell Surface Receptors Enhances Cooperativity of Molecular Adhesion.