MB.1.1. Role of enzymes (HSC biology)
Channel: Letslearnscience
Date: 12/01/2012

Covers the HSC biology syllabus dot point: "identify the role of enzymes in metabolism, describe their chemical composition and use a simple model to describe their specificity on substrates"

• Is to speed up chemical reactions
• Biological catalysts 
• Without enzymes our bodily chemical reactions would not occur at a fast enough rate
• Amino acid - polypeptide chain - protein
• So enzymes are all proteins
• The place where the enzyme and the substrate bond is called the active site
• Lock and key = perfect fit
• Induced fit = the enzyme molds to fit around the substrate then changes shape back to original shape
• Lock and key model is simpler to understand, but induced fit model is more realistic in terms of what actually happens inside your body.
• For every reaction there is only one specific enzyme

Maintaining a balance module playlist:
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Blueprint of life module playlist:
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