What kind of enzyme inhibition occurs in the experiment with lead and bananas?
You should look at the text books first and find out about the different types of inhibitors i.e. competitive, non-competitive reversible or irreversible and the way in which they work. Lead is a heavy metal and these are usually non-competitive irreversible inhibitors. In order to find out if this is true for the catechol oxidase enzyme you would need to carry out more practical work. From what you have read about inhibitors you should be able to work out how to do this. Theoretically, you would need to find the rate of the reaction for increasing catechol (substrate) concentrations without the addition of lead. When plotted on a graph of Absorbance units against time the linear region (usually corresponding to the initial rate) of the resulting graph will give you the velocity of the reaction in Absorbance units per unit time. For each substrate concentration, calculate the rate (velocity) of reaction and plot a graph of Velocity of reaction (absorbance units per sec) against Substra
