Physiology General d8a1e687 Neutral substance which have size of 6 nm are A Freely filtered B Permeability is inversely proportional to diameter C Not filtered D None of the above High-Yield Explanation Neutral substances < 4nm ⇒ freely filtered > 8mm ⇒ not filtered 4nm - 8nm ⇒ Permeability is inversely proportional to diameter