1) Draw a Plant and animal cell and write in detail about the cell in terms of i) Cell Number ii) Cell Size iii) Cell shape iv) Plasma membrane and Cell wall
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(i) Cell Number :-
- The number of cells in living beings differs from the one in unicellular organisms to many in multicellular forms.
- The number of cells in not definite in multicellular organisms, and may increase along with the growth and volume of organism.
(ii) Cell Size :-
- The size of the cell also varies considerably in different animals and plants.
- The average cell size varies from 0.5 to 20µ (µ = micrometer).
- In human body, the smallest cell is RBC and the longest one is the nerve cells.
(iii) Cell Shape :-
- The cells are round, elongated or spherical. There are also some cells which are long and pointed on both the ends.
- Some cells like Amoeba and WBCs have changing shapes.
(iv) Plasma Membrane :-
- The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment.
(v) Cell Wall :-
- A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane.
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