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IB Biology SL C1.1.6 Molecular Motion Questions

Explore how molecular motion brings substrates to enzyme active sites, and how higher kinetic energy increases the chance of successful collisions in IB Biology SL C1.1.6.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain how random molecular motion brings substrates into collisions with enzyme active sites.
  • Explain how higher kinetic energy increases the chance of successful substrate–active-site collisions.

IB Biology SL C1.1.6 Molecular Motion Questions question 1

[Maximum number: 1]

Which statement applies to enzymes?

A

Enzyme function depends on collisions between substrate and active sites.

B

One active site typically binds to a broad range of substrates.

C

The active site on the substrate is specific to one enzyme.

D

When enzymes are immobilized they stop working.

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