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Q.

Cell wall

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a

Of algal cell is made of cellulose, galactans,chitin and calcium carbonate

b

Helps in cell-to-cell interaction

c

is semipermiable

d

is a living structure

answer is B.

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Detailed Solution

 Cell wall is non-living and freely permeable. Gives protection to its plasma membrane and cytoplasm . In plants , it is made up of cellulose , hemicellulose , proteins and pectins.
 

 

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