Analyze these statements about the nuclear envelope and its continuity.
a) It consists of two parallel membranes with a space called the intermembrane space.
b) The outer membrane is continuous with the smooth endoplasmic reticulum.
c) The outer membrane bears ribosomes on it.
d) Nuclear pores are passages formed by a single membrane.
e) The perinuclear space is typically 10 to 50 nm.
f) Movement of molecules through nuclear pores is unregulated.
g) The fusion of its two membranes forms the nuclear pores.
