Disulfide bonds in a protein chain connect an amine and a carboxylic acid group.

Question

Disulfide bonds in a protein chain connect an amine and a carboxylic acid group. an alcohol and a carboxylic acid group. tryptophan and alanine residues. two cysteine residues. two asparagine residues. At a pH greaterthan 9, the zwitterion of glycine w ill have a net positive charge. a net negative charge. an overall charge of zero. low solubility in water. a negative charge on the nitrogen. Cellulose is not digestible by humans because it contains glucose units linked by--glycosidic    bonds. alpha-1, 2 alpha -1,4 alpha -1,6 beta-l,2 beta -l,4

Explanation / Answer

23) D.two ceystine residues

24) B. A net negative charge

25) E. B 1,4

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