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BIOCATALYSIS

Total questions: 10

Worksheet time: 17mins

Name
Class
Date
1.

Which best describe an enzyme?

a)

it is globular protein

b)

act as biological catalyst

c)

its monomer is amino acid

d)

speed up a chemical reaction

2.

Enzymes possess active site, so that

a)

its shape is globular

b)

it can lowering the activation energy

c)

substrate can bind

d)

chemical reaction is faster

3.

Which of the following match with the characteristics of enzyme that the bonds are broken down and cause enzyme is not function anymore

a)

will denature in high pH and temperature

b)

enzyme is highly specific

c)

will denature in extreme pH & very high temperature

d)

enzyme is reusable

4.

Only protease can catalyses the breakdown of protein. This shows that enzyme

a)

is a biological catalyst

b)

is highly specific in action

c)

able to speed up chemical reaction

d)

may catalyses reversibly

5.

Enzyme that catalyses the transfer of functional group of atoms from one molecule to another. This enzyme is

a)

Isomerases

b)

Transferases

c)

Oxidoreductase

d)

Lyases

6.
  • Amylase
  • Lipase
  • Peptidase/Protease


These enzymes are example of

a)

Ligases

b)

Lyases

c)

Transferase

d)

Hydrolases

7.

Enzymes in group Isomerases catalyse

a)

the rearrangement of atoms

b)

the transfer of functional group of atoms

c)

the breaking of chemical bond

d)

the formation of bonds

8.

Which is the example of enzyme ligases

a)

Amylase

b)

DNA ligase

c)

Decarboxylase

d)

Dehydrogenase

9.

What is structure C?

a)

Substrate-enzyme complex

b)

Substrate-enzyme complement

c)

Enzyme-substrate complement

d)

Enzyme-substrate complex

10.

Which of the following best describe yourself?

a)

I'm clever

b)

I'm handsome

c)

I'm beautiful

d)

I'm positive

e)

I'm strong