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6. Messenger, ribosomal and transfer are types of what?

  • RNA
  • DNA

7. What do moulds produce in order to digest bread?

  • Extracellular proteins
  • Intracellular proteins

8. What enzymes catalyse reactions outside the cell?

  • Extracelluar
  • Intracelluar

9. What enzymes catalses reactions inside the cell?

  • Intracellular
  • Extracellular

10. A length of DNA that codes for one polypeptide?

  • Sub unit
  • Gene
  • Protein

11. What is soluble in water and acts as catalysts?

  • Glycoproteins
  • Enzymes
  • Proteins

12. What is the active site in the enzyme specifically shaped to?

  • Specific to the substrate
  • Specific to the lock and key
  • Specific to the products

13. What is an enzymes overall structure?

  • Secondary
  • Teritiary
  • Quaternary

14. If a molecule or ions in a gas or liquid move around continually what type of energy do they have?

  • Kinetic energy
  • Activation energy

15. What is the amount of energy that must be applied for a reaction to proceed?

  • Energy
  • Activation energy
  • Potential energy

16. What does an enzyme do to activation energy?

  • Lower activation energy
  • Raise activation energy

17. When the mRNA peels away from the DNA and leaves the nucleus through what?

  • Nuclear membrane
  • Nuclear pore
  • Nuclear envelope