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IB Biology HL B1.2.9 Hl Tertiary Structure Questions

Explore how one polypeptide folds into a unique three-dimensional tertiary structure stabilized by hydrogen, ionic, disulfide and hydrophobic R-group interactions in IB Biology…

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Define tertiary structure as the unique three-dimensional conformation formed by folding one polypeptide chain.
  • Identify hydrogen-bond, ionic, disulfide-covalent and hydrophobic interactions between R-groups that stabilize tertiary structure.

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Study B1.2.9 (HL)—Tertiary structure conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL B1.2.9 Hl Tertiary Structure Questions question 1

[Maximum number: 2]

The R-groups of amino acids are very diverse chemically. Interaction between R-groups in different parts of a polypeptide helps to determine the tertiary structure of a protein. List two types of interaction between R-groups.

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