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AP Biology 1.7 Proteins Questions

Practise AP Biology 1.7 questions by connecting amino-acid chemistry to protein folding, binding, oxygen transport and the function of specialised cellular proteins.

Syllabus
Effective Fall 2025
Course
AP Biology

Exam points

  • link amino-acid side-chain chemistry and sequence changes to protein folding or binding
  • interpret hemoglobin and myoglobin oxygen-binding curves in pH or tissue contexts
  • distinguish primary, secondary and higher protein structure using peptide bonds, hydrogen bonds and side-chain interactions

Covered syllabus points

1.7.A—Describe the structure and function of proteins

Question 1

[Maximum number: 1]

The amino acid in Figure 1 is found in a region of a polypeptide that folds away from water. Which part of the amino acid most likely contributes to the hydrophobic behavior of this region of the polypeptide?

A

Amine (NH2)\left(\mathrm{NH}_{2}\right) group

B

Carboxyl (COOH) group

C

Methyl (CH3)\left(\mathrm{CH}_{3}\right) group

D

Hydrogen (H) atom

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