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Which of these is not present in algal cell wall?

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in Biology – Class 11 by (272k points)
Which of these is not present in algal cell wall?

(a) Pectin

(b) Mannan

(c) Galactan

(d) Cellulose

I have been asked this question by my college director while I was bunking the class.

The above asked question is from Eukaryotic Cells and it’s Organelles topic in section Cell : The Unit of Life of Biology – Class 11

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The correct choice is (a) Pectin

For explanation I would say: The algal cell wall contains cellulose, galactans, mannans and minerals like calcium carbonate. However, it does not contain pectin. The plant cell wall contains cellulose, hemicellulose, pectins and proteins.

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