CAIE A-Level Biology AS 2.3.4 Globular Proteins Questions

Relate globular protein three-dimensional structure to its properties and biological functions using question evidence.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • Describe the properties and functions of globular proteins in relation to their three-dimensional structure.

CAIE A-Level Biology AS 2.3.4 Globular Proteins Questions question 1

[Maximum number: 1]

Which feature explains why haemoglobin is soluble?

A

All four polypeptide chains are linked together to form a spherical molecule.

B

Each polypeptide chain folds due to interactions between hydrophobic R groups.

C

The hydrophilic R groups are arranged around the outside of the molecule.

D

The iron-containing haem group of each polypeptide chain is water soluble.

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