Important Information

Question 1

Write a note on the nucleus.

3

Answer 1

The most prominent cell organelle

Contains the genetic material which is made up of nucleic acids (DNA and RNA)

Four parts: Nucleolus, Nuclear membrane, Chromatin, Nucleopore

Question 2

Write a note on the structure of the nucleus

5

Answer 2

Lipid bilayer encloses the nucleus to form the nuclear envelope

Envelope has perforations - nuclear pores

Pore complex (protein structure) lines pores and regulates entry and exit of particles

Nuclear lamina lines the nuclear side of the envelope

Nucleolus is found in non-dividing nucleus