Edexcel IGCSE Biology 2.11 Temperature & enzyme function
Practise explaining how temperature changes enzyme activity, using active-site changes, collision rates and practical data patterns.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- explain faster enzyme action at warmer temperatures using kinetic energy and collisions
- explain high-temperature results by denaturation and active-site shape changes
- interpret graphs or data for starch digestion, dough height, respiration or clotting time
2.11 Temperature and enzyme function question 1
Wheat seeds contain stores of a large insoluble molecule.
This molecule is digested by amylase as the seeds germinate.
The graph shows the results of the student's investigation.
Suggest why the rate of oxygen absorption is greater at than at .
All question bank results loaded