What is Nucleus of Cell

It is center  part of cells.

It is spherical in shape

It has different parts like

  1. Nuclear Membrane
  2. Nucleolus and
  3. Chromosomes




Different Parts of Nucleus

It has different parts like

 

Nuclear Membrane

It is outer skin or layer of nucleus

It separates nucleus from the Cytoplasm

This membrane is also porous and allows movement of material between the cytoplasm and inside the nucleus

Some cells do not have it which is called Eukaryotic cells

Cells which have it are called  Prokaryotic Cells

 

Nucleolus

It is small spherical body inside nucleus

Its function we will study in higher classes

 

Chromosomes

They are thread like structures

They carry genes which transfer character from parents to offsprings

 

What are genes

Unit of inheritance in a living body is known as Genes

It controls the transfer of hereditary characteristics from parents to offsprings

 

Do All Nucleus have Nuclear Membrane?

No

Some cells have nuclear materials but no membrane

They are called prokaryotic cells

And the organisms with such cells are known as Prokaryotes



Cells having an organized nucleus and a nuclear membrane are known as Eukaryotic cells .

And the organisms other than Bacteria and Blue Green Al gae such cells are known as Eukaryotes .

Both Plance and Cell - Nucleus -Teachoo.png

 

Questions

NCERT Question 7 - Where are chromosomes found in a cell? State their function.

View Answer

 

NCERT Question 3 -  Write short notes on the following:

(b) Nucleus of a cell

View Answer   

 

  1. Class 8
  2. Chapter 8 Class 8 - Cell - Structure and Function

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.