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IB Biology HL B1.2.12 Globular and Fibrous Proteins Question Bank

Practise IB Biology HL B1.2.12 by comparing globular and fibrous protein forms and linking structure to function and strength.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Compare globular and fibrous proteins using shape, solubility, function and tensile strength.
  • Interpret protein diagrams to connect compact folds or elongated chains with biological roles.

B1.2.12 (HL)—Globular vs. fibrous proteins question 1

[Maximum number: 1]

Diagrams of three different proteins, X, Y and Z , are shown.

Figure for Question B1.2.12 (HL)—Globular vs. fibrous proteins question 1 — IB Biology HL

Which row describes the structure of each protein shown?

X

Y

z

quaternary

globular

secondary

conjugated

fibrous

globular

tertiary

quaternary

primary

globular

secondary

fibrous

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