function of peptidoglycan cell wall

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zarahh09
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Is it just the same as normal cell wall which is to support and protect cell?
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Reality Check
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(Original post by zarahh09)
Is it just the same as normal cell wall which is to support and protect cell?
No, very much not 'just a normal cell wall'. It's comprised of two molecules, NAG and NAM (look them up) the latter of which have short peptide chains cross-linked to other peptide chains on neighbouring NAM residues, making up a sort of 'mesh'. The thick peptidoglycan layer in Gram+ bacteria is important for the integrity of the cell wall, and is involved in reproduction via binary fission.

Look up the Gram stain (to differentiate Gram + and Gram - bacteria) and you'll see the importance of the relatively thick peptidoglycan layer in Gram + bacteria in this test.
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macpatgh-Sheldon
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Good evening sir,

In your capacity as a highly experienced army surgeon, I thought you would add the crucial importance of knowledge of peptidoglycan structure in relation to the mechanism of action of penicillin??

M
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(Original post by macpatgh-Sheldon)
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Good evening sir,

In your capacity as a highly experienced army surgeon, I thought you would add the crucial importance of knowledge of peptidoglycan structure in relation to the mechanism of action of penicillin??

M
Hi M. Yes, it's a good point, but it's difficult to know how much detail the OP needs, so I left it at structure only, rather than going into function. A good point nonetheless
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