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All of the following amino acids have a neutral side chain at pH=7 EXCEPT:

All of the following amino acids have a neutral side chain at pH=7 EXCEPT:

a) Cysteine

b) Histidine

C) Lysine

D) Tyrosine

The answer is C, but I do not understand how it can have a neutral side chain if it has a positive charge at the end: -CH2CH2CH2CH2NH3+

Top Answer

At pH=7, the main acid group is dissociated (-COO - ) and the main amino group is protonated (-NH3 + ). The net charge is... View the full answer

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Other Answers

since it is from amino acid, it 99% hence... View the full answer

its side chains contain nitrogen and resemble ammonia, which... View the full answer

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