GCSE Biology - What are Enzymes?

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*** WHAT'S COVERED ***
1. The role and importance of enzymes in biological processes.
2. Definition and function of catalysts and enzymes.
* What a catalyst is and its properties.
* Enzymes as biological catalysts made of amino acids.
* How enzymes speed up specific reactions.
3. How enzymes work at a molecular level.
* The concept of the active site.
* The interaction between enzymes and substrates.
* Enzyme specificity due to active site shape.
4. Models explaining enzyme action.
* The Lock and Key model.
* The Induced Fit model.

*** EXAM BOARD INFO ***
AQA - Suitable for everyone
IGCSE Edexcel - Suitable for everyone
Edexcel - Suitable for everyone
OCR 21st Century - Suitable for everyone
OCR Gateway - Suitable for everyone
CIE - Suitable for everyone

*** CHAPTERS ***
0:00 Intro & Why Enzymes are Needed
1:14 What are Catalysts?
1:45 Enzymes as Biological Catalysts
2:21 How Enzymes Work - Active Site & Substrates
3:18 Two Models of Enzyme Action

*** PLAYLISTS ***










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