Statistics for Amino Acid Questions

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Hint	Answer	% Correct
Which amino acid can form disulfide bonds	Cysteine	77%
What is physiological pH	7.4	69%
...... are non superimposable mirror images (another word for stereoisomers	Enantiomers	62%
Cysteine can partially meet the need for ..... since they both contain sulfur	Methionine	54%
Except glycine, all amino acids are L or D amino acids	L	46%
The acid and amino groups in amino acids are capable of ionising, and they can act as both an acid and base, therefore they are called...	Amphoteric	38%
Which amino acid is an imino acid	proline	38%
In a condensation reaction, a peptide bond is formed and ..... is lost	Water	38%
Tyrosine can partially meet the need for .....	phenylalanine	31%
At physiological pH, the amino group will be.... (positively charged	protonated	31%
Amino acids can have both positively and negatively charged groups on the same molecule, therefore they are known as....	Zwitterions	31%
When the net charge is zero, this is known as the.....	Isoelectric point	23%
At physiological pH, the carboxyl group will be..... (negatively charged	Unprotonated	15%
Histidine has an ..... R group	Imidazole	8%
When the pH of an amino acid solution changes, so does the.....	Net charge	8%