The pore size of the nuclear membrane is appr | vedclass

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(A) The nuclear envelope consists of two parallel membranes with a space between them called the perinuclear space. These membranes are interrupted by

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$100 \ \mathring{A}$

Vedclass · Answer

(A) The nuclear envelope consists of two parallel membranes with a space between them called the perinuclear space. These membranes are interrupted by minute pores,known as nuclear pores,which are formed by the fusion of the two membranes. The diameter of these nuclear pores is generally considered to be approximately $800 \ \mathring{A}$ to $1000 \ \mathring{A}$,but the functional pore size that allows the passage of molecules is often cited in the range of $100 \ \mathring{A}$ to $300 \ \mathring{A}$. Among the given options,$100 \ \mathring{A}$ is the most standard accepted value for the functional diameter of the nuclear pore complex channel.

The pore size of the nuclear membrane is approximately:

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