Energy, rates and reactions - AQA Synergy

1

If the energy change on an energy level diagram is negative, what does this tell you about the reaction?

2

What name is given to the minimum amount of energy needed by particles for them to react when they collide?

3

On a reaction profile, what does the height of the hump represent?

4

What are enzymes made from?

5

How do catalysts work?

6

Which statement is true of enzyme activity?

7

Which is the most likely value for the optimum pH of an enzyme that breaks down protein molecules in the stomach?

8

Which model explains how an enzyme works?

9

What happens to an enzyme at temperatures approximately 10°C above its optimum temperature?

10

What can you deduce from the reaction profile below?

a reaction profile graph showing the energy of the reactants lower than the energy of the products