IB Biology SL 1.1.3 Helicase and DNA polymerase Question Bank
Practise IB Biology SL 1.1.3 by identifying helicase and DNA polymerase functions during DNA replication.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how helicase separates DNA strands by breaking hydrogen bonds.
- Explain how DNA polymerase adds complementary nucleotides to a growing strand.
- Use a replication diagram to match each enzyme to its molecular action.
D1.1.3—Role of helicase and DNA polymerase question 1
[Maximum number: 1]
Outline the role of the following enzymes in replication.
Outline the role of helicase in DNA replication.
unwinds/separates strands/double helix (by breaking hydrogen bonds)
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