A student's study notes on protein structure included these four unlabelled sketches - VCE - SSCE Chemistry - Question 14 - 2009 - Paper 1
Question 14
A student's study notes on protein structure included these four unlabelled sketches.
I.
II.
III.
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Worked Solution & Example Answer:A student's study notes on protein structure included these four unlabelled sketches - VCE - SSCE Chemistry - Question 14 - 2009 - Paper 1
Step 1
primary structure
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Answer
The primary structure of a protein refers to the specific sequence of amino acids linked by peptide bonds. This is represented by sketch III, where individual amino acids like Ala, His, Met, and Pro are shown in a linear arrangement.
Step 2
secondary structure
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Answer
The secondary structure consists of local folded structures that form within a protein, primarily alpha helices and beta sheets. This is depicted in sketch II, which shows a coiled structure indicating an alpha helix.
Step 3
tertiary structure
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Answer
The tertiary structure refers to the overall three-dimensional shape of a protein, resulting from interactions among various side chains. Sketch IV illustrates this complex folding, connecting different regions of the protein's amino acid chain.
