Q3 of 360 Page 118

Write down differences between nucleus and nucleoid.

Differences between nucleus and nucleoid:

Nucleus	Nucleoid
Nucleus is the place where eukaryotes store their genetic material.	Nucleoid is the place where prokaryotes store their genetic material.
It is large and well organised.	It is small and poorly organised.
It is surrounded by double layered membrane.	Membrane is absent.
It contains many chromosomes.	It contains only single chromosome.
Nucleolus is present inside the nucleus.	Nucleolus is absent.

Distinguish between prokaryotic and eukaryotic cells.

Write down differences between organ and organelle.

Mention differences between light microscope and electron microscope.

Give a brief account of discovery of the cell.