A protein molecule contains hundreds of amino acids. Which term describes the protein?

Correct answer: A polymer, because it is made from many amino acid monomers.. MCQ route 8: this exact option matches Define polymers as molecules made from many monomers joined together. and should be chosen over distractors that change the mechanism, context or biological consequence.

Reasoning route 8: For this question, start with the A-Level concept in Monomers and polymers, then connect it to the scenario using monomer, polymer and a clear cause-and-effect chain. The correct option is "A polymer, because it is made from many amino acid monomers.", so the explanation must explicitly support that wording. The question wording is "A protein molecule contains hundreds of amino acids. Which term describes the protein?". This also helps avoid confusing similar A-Level terms that share vocabulary but test different biological reasoning. If practical wording appears, address method, independent variable, dependent variable, control variables, risk, precision, accuracy and uncertainty; evaluate limitations, reliability, validity, anomalies and the conclusion. For aseptic or microbial work, include contamination control, sterile technique, disinfectant use or inhibition-zone evidence.