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1. The structure of glycine is shown below:
At pH 10, the predominant form of the amino group is:
a. de-protonated and negatively charged
b. de-protonated and positively charged
c. protonated and negatively charged
d. de-protonated and uncharged
e. protonated and positively charged
2. In an aqueous environment biomolecules like proteins mostly exist as
a. neutral species
b. zwitterions
c. anions
d. uncharged species
e. cations
3. The structure of glycine is shown below:
The Predominant Species of glycine at pH 8 is:
a. anionic
b. unionized
c. neutral
d. cationic
e. zwitterionic
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