The enzyme invertase catalyses the breakdown of sucrose to glucose and fructose.
Three different enzyme inhibitors of invertase X, Y and Z were investigated. The percentage inhibition of invertase was measured at different concentrations of inhibitor.
The graph shows the result of the investigation.
Which are valid conclusions from these results?
1) The higher the concentration of inhibitor X, the less sucrose is broken down.
2) The production of glucose and fructose using inhibitor Y is higher than when inhibitor Z is used.
3) The production of glucose and fructose at an inhibitor concentration of 2 arbitrary
units is lower than at an inhibitor concentration of 4 arbitrary units, for all inhibitors.
1 )
1 and 2
1 only
3 )
2 and 3
4 )
3 only
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