Answer:
Nature and occurrence The nucleus is a large,
centrally located spherical cellular component. It is bounded by two nuclear
membranes, both forming a nuclear envelope.
Nuclear envelope encloses a space between two nuclear
membranes and is connected to a system of membranes called the ER (Endoplasmic
Reticulum).
It encloses nucleolus, nuclear pore and nucleoplasm.
Nucleus has very important functions as listed below
1. The nucleus controls all metabolic activities of
the cell. if tile nucleus is removed from a cell, the protoplasm ultimately
dries up and dies.
2. it regulates the cell cycle.
3. It is concerned with the transmission of
hereditary traits form the parent to offspring.
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