These include:
Nucleus, mitochondria, ribosomes, lysosomes, endoplasmic reticulum, Golgi apparatus and vacuole.
The nucleus is a
eukaryotic cell organelle
that controls all cellular
functions.
Robert Brown discovered
the nucleus in the year
1831.
Nucleus
Cells are of two types based on the presence of a nucleus.
These include
prokaryotic cells and eukaryotic cells.
A cell without a nucleus is
known as a prokaryotic
cell.
Example: Bacteria,
blue-green algae.
Prokaryotic Cell:
A cell with a prominent nucleus is called a eukaryotic cell.
Example: plant cell, animal cell.
Eukaryotic Cell:
The nucleus has the following parts:
Nuclear membrane, Nuclear pore, nucleolus, nucleoplasm and genetic material.
It is a double membranous structure that encloses the nucleus. The nuclear membrane separates nucleoplasm and cytoplasm.
Nuclear Membrane:
The gaps in the nuclear membrane are known as nuclear pores.
Nuclear Pore:
Fluid present inside the nucleus is known as nucleoplasm.
Nucleoplasm:
A dark portion of the nucleus that absorbs more stains is the nucleolus.
Nucleolus:
Chromatin materials are complex molecules containing DNA, RNA, and associated proteins that constitute chromosomes in the nucleolus.
Genetic Material or chromatin Material:
Nucleus controls and regulates all the cellular functions.
Functions of Nucleus:
The nucleus carries genes that have hereditary information. Genes determine the characteristics of living organisms.
The nucleus is involved in cell division.