BIOCATALYSIS

What happens to enzyme activity if it is denatured?

• Enzyme activity will increase

• Enzyme activity will decrease

• Enzyme activity will remain the same

• Enzyme activity will increase and then decrease

Which of the following are the products?

• A, only

• E, only

• A and E

• B,C,D

What is the optimum temperature this enzyme works the best in?

• 20

• 26

• 38

• 50

Enzymes will make a reaction go _______ and use ______ energy.

• faster, less
• faster, more
• slower, less
• slower, more

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

Enzymes are composed of what organic molecule?

• Sugars
• DNA
• Proteins
• Fatty Acids

What happens to an enzyme when it is denatured?

• Activation energy is lowered.
• It becomes stronger.
• It loses its shape.
• Activation energy is raised.

Explain model shown above

• The active site is exactly complementary to substrate

• The active site is highly specific

• The active site is flexible

• The active site is rigid

State the function of X

• Binding site of substrate

• Binding site of cofactor

• Binding site of reactant

• Binding site of inhibitor

Enzyme that join the ends of two strands of nucleic acid is

• Ligases

• Hydrolases

• Transferases

• Isomerases