Biology, asked by lijumgeyi1233, 11 months ago

write five sentences to describe the structur of nucleus

Answers

Answered by aalia21
17

Answer:

The nucleus is an organelle found in eukaryotic cells . It contains the genetic material , the DNA which is responsible for controlling and directing all the activities of the cell. It is spherical in shape . In animal cell it located at the center . and plants cell it located at the side . It has doubled layer covering called nuclear membrane.

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Answered by aimenbatool2001
4

Answer:

The cell nucleus is bound by a double membrane called the nuclear envelope. This membrane separates the contents of the nucleus from the cytoplasm. Like the cell membrane, the nuclear envelope consists of phospholipids that form a lipid bilayer. The envelope helps to maintain the shape of the nucleus and assists in regulating the flow of molecules into and out of the nucleus through nuclear pores. The nuclear envelope is connected with the endoplasmic reticulum (ER) in such a way that the internal compartment of the nuclear envelope is continuous with the lumen of the ER.

The nucleus is the organelle which houses chromosomes. Chromosomes consist of DNA, which contains heredity information and instructions for cell growth, development, and reproduction. When a cell is "resting" i.e. not dividing, the chromosomes are organized into long entangled structures called chromatin and not into individual chromosomes as we typically think of them.

Explanation:

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