Paper 1 · Proteins and Amino Acids
The diagram illustrates the buffering effect of an amino acid at pH 5.6. Which pH conditions are likely to be correct for Y and Z?
AY 8.2, Z 5.6
BY 4.8, Z 6.2
CY 7.0, Z 8.2
DY 6.2, Z 7.0
ZIMSEC Biology 9190/1 Paper 1, June 2004, Q6