D4 Structure of the Nucleus

Question 1

What is the structure of a Nucleus

Answer 1

1. The nucleus is the Largest organelle in the cell, ​approximatly 10μM in diameter and can be seen by a light microscope.
2. The outer layer of the Nucleus is called the Nuclear envelope, which has a number of gaps in it called Nuclear pores, through which large molecules (e.g. mRNA and Ribosomes) can pass.
3. The outer Nuclear Membrane is attached to a number other membranes called the endoplasmic reticulum.
4. The neucleus contains Nucleoplasm, which contains chromatin, that is made up of DNA attached to proteins called histones.
5. The Nucleolus is a spherical structure, within the nucleus, where Ribonucleic acid (RNA) is produced