Covering the core and AHL/ SL Option C content, here is a rundown of enzymes, from active sites to end-product inhibition. Again, there are lots of animation resources out there, many of which are used in the presentation – click on the shadowed images to go there.
Check out this article on the potential use of an enzyme in second-generation biofuels.
What is an enzyme? from Northland (the best one – including inhibitors, pathways and feedback inhibition)
How enzymes work from McGraw Hill
Enzyme basics from KScience.co.uk
A full collection of savable enzyme animations from Husam Medical
And John Giannini’s Enzyme collection is nice and clear.
Enzyme activity and kinetics
Enzyme kinetics from Wiley Interscience
Protein denaturation from McGraw Hill
Complete tutorial from Wiley Interscience
What is an enzyme? from Northland
Feedback (end product) inhibition from McGraw Hill
And here’s a quick run down on YouTube: