Multiple Choice
Which amino acid residues in hemoglobin are primarily carbamylated at low pH?
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3. Amino Acids
Amino Acid Configuration
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following primarily dictates the three-dimensional structure of a protein molecule synthesized by the body?
A
The amount of ATP available during synthesis
B
The concentration of enzymes in the cell
C
The presence of metal ions in the cytoplasm
D
The sequence of amino acids (primary structure)
Verified step by step guidance1
Understand that the three-dimensional structure of a protein is determined by its primary structure, which is the sequence of amino acids. This sequence dictates how the protein will fold into its functional shape.
Recall that the primary structure of a protein is encoded by the genetic information in DNA, which is transcribed into mRNA and then translated into a specific sequence of amino acids during protein synthesis.
Recognize that the chemical properties of the amino acids, such as hydrophobicity, charge, and size, influence how the protein folds. These interactions include hydrogen bonding, ionic interactions, van der Waals forces, and hydrophobic effects.
Understand that while factors like ATP availability, enzyme concentration, and metal ions can influence protein synthesis or activity, they do not primarily dictate the three-dimensional structure. The sequence of amino acids is the key determinant.
Conclude that the correct answer is the sequence of amino acids (primary structure), as it provides the blueprint for the protein's folding and final functional shape.
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