Multiple choice

Which of the following amino acids and the characters are correctly matched?

  1. cysteine: charged: thiol group 2. lysine: uncharged: butylammonium side chain 3. arginine: uncharged: guanidino group 4. histidine: uncharged: imidazolium group

  1. Only 1

  2. Both 1 and 2

  3. Only 3

  4. Both 3 and 4

  5. None of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

These all matches are incorrect in terms of their charge.

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