WHAT IS NUCLEUS? PLEASE EXPLAIN THE STRUCTURE OF CELL.

The nucleus is the largest organelle present in the eukaryotic cells. It is spherical in shape. It holds the genetic material. It regulates all the activities of the cell, that is why it is called control center of the cell.

The basic component of cells is the protoplasm and plasma membrane. Protoplasm consists of the cytoplasm and the nucleus. Cytoplasm is the cellular matrix in which the nucleus is suspended. 

In plant cells, the outermost covering also constitutes the cell wall, beneath which the plasma membrane lies.

The cytoplasm is the inner content of the cell membrane, which is separated from the nucleus. It includes cytosol, organelles, and inclusions. Cytosol is a soft and sticky, semi-transparent fluid in which various cell organelles are suspended. Inclusions are stored nutrients.

A cell contains various cell organelles like golgi bodies, endoplasmic reticulum. mitochondria, vacuoles, lysosomes etc, which help in performing different functions like ATP synthesis, lipids and protein synthesis, their transport, etc.