Question

The diameter of perinuclear space is

• A. $100-1000\stackrel{\circ }{A}$
• B. $10-50\text{nm}$
• C. $1-5\text{nm}$
• D. $50-800\stackrel{\circ }{A}$

Answer 1

The correct option is B $10-50\text{nm}$

The perinuclear space is the luminal space between the inner and outer nuclear envelope bilayers that separate the nucleus from the cytoplasm. The width of the space is between $100\stackrel{\circ }{A}$ and $500\stackrel{\circ }{A}$ or $10-50\text{nm}$.