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