Enzyme test

1. An enzyme is
lipid
cabrohydrates
protein
nucleic acid
2. An enzyme promotes a chemical reaction by
lowering the energy of activation
increasing the energy of activation
changing the free energy
None of these
3. The function of an enzyme is to
change the directions of reactions
control the equilibrium
change the rates of chemical reactions
All of these
4. The word enzyme was coined by
Kunhe
Koshland
Louis Pasteur
Fischer
5. First enzyme to be isolated in pure crystalline form was
Zymase
Oxygenase
Hexokinase
Urease
6. Which of the following have no enzymes of their own ?
Bacteria
Cynobacteria
Viruses
All of these
7. Proteinaceous nature of enzymes are discovered by
Kunhe
Koshland
Buchner
Sumner
8. Which of the following enzyme is not proteinaceous in nature
Urease
Peptidiase
Ribozyme
Phosphatase
9. Which of the enzyme has highest turn over number?
PEP Carboxylase
Phosphorylase
Lysozyme
Carbonic anhydrase
10. Which of the enzyme has lowest turn over number?
Lysozyme
Carbonic anhydrase
PEP Carboxylase
Phosphorylase

Score =
Correct answers:


credit : http://www.quizbiology.com/2013/05/biology-quiz-on-enzymes.html