amino acids testing your knowledge of amino acids structure and reactions 4.0 / 5 based on 6 ratings ? ChemistryAcids, bases and saltsAmines and azo dyesA2/A-levelOCR Created by: stephanie mercerCreated on: 26-01-12 12:17 what is the general formula for an amino acid? NH2CH(R)COOH 1 of 9 what effect does PH have on an amino acid? it changes the NH2 to NH3 or COOH to COO- 2 of 9 what is an isoelectric point? the point where an amino acid acts as both an acid and a base 3 of 9 what happens if the PH is more acidic than the amino acids isoelectric point? an NH3 group is formed 4 of 9 what happens if the PH is more alkaline than the amino acids isoelectric point? a COO- group is formed 5 of 9 what is a zwitterion? an amino acid with a NH3 group and a COO- group 6 of 9 what is a polypeptide? more than one amino acid 7 of 9 an amide link is formed from bonding two amino acids. true or false? True 8 of 9 what is it called when two amino acids bond together? dipeptide 9 of 9
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