What is the difference between peptidoglycans, found in the cell walls of prokaryotes, and chitin, found in the exoskeletons of insects?

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Chitin is a protein polymer, whereas the peptidoglycan of bacteria is a carbohydrate polymer linked by amino acids.

Parallel strands of glucosamines in chitin are cross-linked by hydrogen bonds, whereas parallel strands of peptidoglycan are linked by tetrapeptides.

Peptidoglycan is a glucose polymer, whereas chitin is made up of glucosamines.

Chitin has a b-1,4 linkage between its glucosamines, whereas peptidoglycan has an a-1,4 linkage between its constituent glucosamines.

 

asked Dec 25, 2012 in Biology by anonymous
    

1 Answer

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Parallel strands of glucosamines in chitin are cross-linked by hydrogen bonds, whereas parallel strands of peptidoglycan are linked by tetrapeptides.

 

answered Dec 25, 2012 by anonymous



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