In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: What determines the color of visible light? Answer: exact wavelength

A: Exact wavelength determines the color of visible light.
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Q: Question: Does blood flow increase or decrease when blood vessels constrict? Answer: decrease

A: Blood flow decrease when blood vessels constrict.
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Q: Question: What catalyzes the hydrolysis of amino acids from the n-terminal end of a protein? Answer: aminopeptidase

A:
Aminopeptidase catalyzes the hydrolysis of amino acids from the n-terminal end of a protein.
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