Question

❎ hey user ❎ define nucleus ✔✔

Answer 1

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here is u r answer ##

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THE NUCLEUS IS A SPHERICAL , CENTRALLY LOCATED IS A MAJOR STRUCTURE FOUND IN THE CELL.IN PLANT CELL IT IS SHIFTED TOWARDS PERIPHERY .IT IS BOUNDED BY DOUBLE LAYERED NUCLEAR MEMBRANE HAVING PORE.WITHIN NUCLEOPLASM NUCLEOLUS AND CHROMTAIN MATERIAL IS PRESENT .NUCLELOUS IS RICH IN PROTEIN AND RNA. CHROMOTAIN MATERIAL IS THIN THREAD LIKE STRUCTURE FORMING NETWORK.THIS IS MADE UP OF GENETIC SUBSTANCE DNA (deoxiribo nucleic acid).AND HISTONE . DURING CELL DIVISION CHROMATIN BREAKS INTO PIECES AND FORM CHROMOSOME.

FUNCTION :-

IT CONTROLS ALL THE ACTIVITY OF CELLS .SO IT IS ALSO KNOWN AS "control room" OF CELL.

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Answer 2

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✔Nucleus is a spherical shaped cell organelle which is largest organelle in eukaryotic cells.

✔Nucleus is called the brain of the cell because it controls all activities and it carries genetic material.

✔The outer membrane of the nucleus is known as nuclear membrane.

✔Nuclear membrane is porous as it contains a small pores on it's surface which helps in exchange of materials in and out of nucleus.

✔Nucleolus is a small structure which is found at the centre of nucleus.

✔Nuclear plasma is a sap like structure which is found in nucleus. It is semi solid in nature.

✔Chromatin network is a network of thread like structures present inside the nucleus which carry chromosomes on it.