An enzyme catalyses a reaction in the cells of a germinating seed by providing a different reaction pathway.
What is true when this pathway is used?
A larger fraction of collisions are successful
Collisions occur more often because the particles are closer together
Reacting particles receive additional kinetic energy from the enzyme
The enzyme is used up as products form
127 exam-style questions on AQA GCSE Chemistry 6.1 Rate of reaction, covering 6.1.1a Calculating rates of reactions, 6.1.1b Gradient of a tangent as rate, 6.1.2 Factors which affect the rates of chemical reactions, 6.1.3 Collision theory and activation energy, and 6.1.4 Catalysts. Each one has a worked solution and a mark scheme showing where the marks go.