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Make sketches of animal and plant cell. State three differences between them.



Differences:(i) In animal cell, cell wall is absent while, in plant c

Differences:

(i) In animal cell, cell wall is absent while, in plant cell it is present.

(ii) Chloroplasts are absent in animal cell and are present in plant cell.

(iii) In animal cell, Centrosome presents near the nucleus and in plant cell it has no centrosome.
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Write short notes on the following :
Cytoplasm


It is a jellylike substance which is present between nucleus and cell membrane. There are various other organelles present in the cytoplasm. It is made up of carbohydrates, proteins and water.

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Write short notes on the following :

Nucleus of a cell


Nucleus is spherical dense body found in the centre of the cell. Nuclear membrane separates the nucleus from cytoplasm. It acts as control centre of the activities of the cell. Nucleus contains thread-like structures called chromosomes. Nucleus membrane is porous and  allows the movement of material between the nucleus and cytoplasm. It also contains the threadlike structure called chromosomes which are genetic material. 

 

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Which part of the cell contains organelles?


Cytoplasm. 

 

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State the difference between eukaryotes and prokaryotes.


Eukaryotes have a well designed nucleus and organelles covered with membranes while prokaryotes do not have a well designed nuclear membrane .

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