IB Biology HL C1.1.1 Enzymes As Catalysts Questions
Practise IB Biology HL 1.1.1 by applying enzymes as catalysts concepts to exam questions.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Define enzymes as biological catalysts that speed up chemical reactions and lower activation energy.
- Relate enzyme specificity to the substrate and active site.
- Explain that enzymes work in small amounts and remain unchanged after catalysis.
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IB Biology HL C1.1.1 Enzymes As Catalysts Questions question 1
[Maximum number: 4]
Outline the action of enzymes.
a. catalyse/speed up reactions
b. substrate-specific
c. lower the activation energy «of a chemical reaction»
d. substrate collides with/binds to active site
e. enzyme-substrate complex formed OR transition state formed OR bonds in substrate weakened
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