Lecture 2 Quiz

A zeroth order reaction:

• Are bimolecular reactions

• The rate is independent of the reactant concentration

• The rate is dependent on the reactant concentration

• Occur under very cold temperatures

Km is.....?

• Maximal rate of a reaction

• optimal pH

• Half Vmax

• Substrate concentration at half Vmax

Lactate dehydrogenase follows a

• Random sequential reaction

• Ordered sequential reaction

• Ping pong mechamism

• Double displacement reaction

The rate law depends on

• The concentration of reactants only

• On the rate constant only

• The rate constant and usually depends on the concentration of reactants

• On the concentration of products

In the  Arrhenius equation, T stands for:

At Vmax

• All the sites of the enzyme are saturated

• Half the sites of the enzyme are saturated

• The reaction is proceeding at half the maximal velocity

• There is low substrate present

Reaction rate is plotted as a function of the ratio between rate and substrate concentration in:

• Hanes-Woolf

• Eadie-Hofstee

• Lineweaver Burke plot

• Michaelis menten plot

Vmax is related to the turnover number of enzyme, also called:

What is Vmax?

• At a fixed concentration of enzyme, the formation of product will not increase even if you add more substrate

• A maximum value for Velocity

• Related to a situation where the Michaelis-Menten plot reaches a plateau ('flat')

• Maximum substrate that is been converted to product

This plot represents a ______ inhibitor reaction

• Competitive

• Uncompetitive

• Non-competitve

• Mixed