Q27 of 360 Page 110

Draw a well labelled diagram of eukaryotic nucleus. How is it different from nucleoid?

(b) 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.

Illustrate only a plant cell as seen under electron microscope. How is it different from animal cell?

Draw a neat labelled diagram of an animal cell.

Differentiate between rough and smooth endoplasmic reticulum. How is endoplasmic reticulum important for membrane biosynthesis?

In brief state, what happen when

(a) Dry apricot is left for some time in pure water and later transferred to sugar solution.

(b) A red blood cell is kept in concentrated salt solution.

(d) Rheo leaves are boiled in water first and then a drop of sugar syrup is put on it.

(e0 Golgi apparatus is removed from the cell.