Enzymes are biological catalysts. What is catalyst?

Describe the shape of enzyme.

(a)  

Write your answers in sequence with comma(') as separator.

(a)  

Name the element present in proteins not present in other biomolecules (carbohydrates, lipids).

(a)  

Name any two enzymes found in human digestive system.

a) Name any enzyme present in human body.

b) State its location.

c) State its substrate.

d) State its optimum pH.

At what temperature do human enzymes work best?

(a)  

(a)  

You investigated the effect of temperature on the rate of enzyme activity.

a) What enzyme did you use?

b) What substrate did you use?

c) How did you vary the temperature during investigation?

d) How did you measure the rate of enzyme activity?

e) During this investigation, pH was kept constant. How did you kept pH constant?

f) What was the result of your investigation?

You investigated the effect of pH on the rate of enzyme activity.

a) What enzyme did you use?

b) What substrate did you use?

c) At what temperature did you carry out your investigation? How did you kept the temperature constant throughout investigation?

d) How did you vary the pH during the investigation?

e) What control you used?

f) What was the result of your investigation?

Answer the following in relation to the procedure you carried out to immobilise an enzyme.

a) Name the enzyme you used.

b) Name the material that immobilizes the enzyme.

c) Why the immobilised enzyme was left in Calcium chloride solution for some time?

d) Why the immobilised enzyme was rinsed in a sieve?

e) What was the substrate used by enzyme?

f) What was the product of enzyme reaction?

g) How did you test for the presence of product?

h) State two advantages of immobilized enzyme?

a) What is metabolism?

b) What is the difference between catabolic and anabolic reaction

c) Give one example of each catabolic and anabolic enzyme?