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Biology
2. The Fundamental Unit of Life: Cell
Home · Class 9 · Biology · Ref. Book · 2. The Fundamental Unit of Life: Cell
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Q1 of 360 Page 113

What happens to an animal cell when it is placed in a very dilute external medium? Why? (2 mar; 2010)

Since external solution is hypotonic, when an animal cell is placed in it, the cell will swell up due to endosmosis for some extent and ultimately burst up.


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29

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.


(c) The plasma membrane of a cell breaks down.


(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.

30

Draw a neat diagram of plant cell and label any three parts which differentiate it from animal cell.

2

Draw a plant cell and name seven important organelles found in it.

2

Name one organelle that can make some of its protein in a plan cell and also mention one function of such organelle.

Questions · 360
2. The Fundamental Unit of Life: Cell
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