HKDSE Biology - Enzyme
Compulsory Part I Cells and Molecules of Life
Properties of enzyme
👆🏻This photo showing the properties of enzyme.
1. Enzyme with catalytic property
2. Enzyme with specificity
3. Enzyme with reversibility
4. Enzyme is sensitive to heat
5. Enzyme is sensitive to pH
Role of enzyme in metabolism
In HKDSE Biology examination, you will be used to draw this graph indicating the effect of the enzyme towards activation energy of metabolism ❗️ ❕
👆🏻This photo comparing the difference in activation energy of having catalyst - enzyme or without it.
Active site of enzyme
👆🏻This photo showing how substrate binds to active site of enzyme.
👆🏻Lock and Key hypothesis is commonly used to explain the specificity of enzyme.
🤗 Substrate is like the key while enzyme is like the lock that only a particular key can open a lock like only particular substrate can bind to enzyme and form enzyme-substrate complex.
That's the end of this topic 👏🏻
Written by Bella | HKDSE Biology Specialist @ TUTTEE
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