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SAI International School
Subject-Biology, Class-VIII
Topic – Cell: Structure and Function
Subtopic – Nucleus,Prokaryotic and Eukaryotic cells
Module 10
Lesson Notes
Nucleus
It is the most important component of the cell. It is usually spherical or oval
in shape. In young plant cells and animal cells, nucleus is present in centre
of the cell. In matured plant cells,nucleus is present in the periphery of the
cell due to presence of large vacuole at the centre. Matured human RBC
does not contain nucleus while the human skeletal muscle cells have many
nuclei.
