AP Biologyeasymcq1 pt
What determines a protein's specific three-dimensional shape?
A.Its amino acid sequence
B.The ribosome's random choice
C.The number of lipids attached
D.Temperature alone
Explanation
Core Concept
A protein's amino acid sequence determines which side chains can form hydrophobic, ionic, hydrogen-bonding, and other interactions as the polypeptide folds. Those interactions help determine the protein's three-dimensional conformation, which in turn strongly influences function. Sequence-to-structure-to-function is a useful relationship, but it is not normally called a 'central dogma of protein chemistry.'
Correct Answer
AIts amino acid sequence
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