Catalyse Reactions

Question 1

What do Chemical Reactions usually involve?

Answer 1

• Things either being split apart or joined together

- The substrate in the molecule changed in the reaction

Question 2

What do Enzymes have and how does it help?

Answer 2

• Enzymes have special shapes so they can catalyse reactions

Question 3

What does every enzyme have and what is it?

Answer 3

• An Active Site

- This is the part where it joins on to its substrate to catalyse the reactions

Question 4

What is an Active Site?

Answer 4

• The part where it joins onto its substrate to catalyse the reactions

Question 5

What do Enzymes generally only work with?

Answer 5

• One substrate because enzymes have a high specificity for their substrate

Question 6

What do Enzymes need to work?

Answer 6

• The substrate being able to fit into the active site

Question 7

What would happen if the substrate’s shape does not match?

Answer 7

• If the substrate’s shape does not match the active site’s shape, then the reaction won’t be catalysed

Question 8

What is this method called?

Answer 8

• The ‘Lock and Key’ mechanism as the substrate fits into the enzyme just like a key fits into a lock