(b) Three enzymes, P, Q and R, were extracted from different regions of the alimentary canal of a mammal. The effect of pH on the activity of the enzymes was investigated at
40C. The results are shown in the figure below.
P
Q
R

(1) Explain why the investigation was carried out at 40°C. What do we call this
temperature?
(il) Using information in the diagram, describe the effects of increasing pH on the rate
of activity of enzyme Q.

Label the steps for protein synthesis in order, beginning with the first steponce the protein is made, the gene for a particular trait is expressedmrna joins the ribosome, and the anticodons from trna join mrna to form a chain ofamino acidsrna polymerase unzips dna and free rna nucleotides join dna to form mrnav a chain of amino acids is formed from peptide bonds, creating a proteinmrna is transported from the nucleus of the cell to the ribosomes of the cell.