Page 34 - Enzymes in Tropical Soils

22 Enzymes In Tropical Soils

Eq. 2.10 shows that the value of k can be calculated from the slope of the linear
equation of a plot between minus logarithm of (a – y) versus t.

Important Questions

1. What is the role of an enzyme ? What are the roles of urease, phosphatase, and
arylsulphatase in soils?
2. Why urease is unwanted in the soil system? What is the role of Urease Inhibitor?
Explain!
3. What are the two remarkable properties of enzymes?
4. Explain the catalytic property of enzymes!
5. Explain the specificity property of enzymes!
6. Explain the action mechanism of an enzyme! What happens to enzyme after the
enzymatic reaction?
7. Mention the factors affecting the rates of enzymatic reactions!
8. Why does the substrate concentration determine the rate constant? At what
substrate concentration does the activity of enzyme is determined? Why?
9. Why does the concentration of enzyme affect the rate constant of a biochemical
reaction?
10. Explain the effects of temperature on the rate constant of a biochemical reaction!
How does it relate to the Arrhenius equation?
11. How can the Activation Energy be determined? How is the relationship between the
Activation Energy and the Enthalpies of reactants and the products of a reaction?
Explain!
12. Why does pH affect the rate constant of a reaction? What is Optimum pH? Explain!
13. What is the Zero Order Enzymatic Reaction? Explain!
14. How can the rate constant in the Zero Order Enzymatic Reaction be determined?
15. What is the first Order Enzymatic Reaction? Explain!
16. How can the rate constant in the First Order Enzymatic Reaction be determined?

Abdul Kadir Salam - 2014