The diagrams below represent examples of three levels of structure with respect to the folding and assembly of a protein - VCE - SSCE Biology - Question 1 - 2015 - Paper 1
Question 1
The diagrams below represent examples of three levels of structure with respect to the folding and assembly of a protein. The diagrams are not to scale.
A. alpha-he... show full transcript
Worked Solution & Example Answer:The diagrams below represent examples of three levels of structure with respect to the folding and assembly of a protein - VCE - SSCE Biology - Question 1 - 2015 - Paper 1
Step 1
Complete the table below to indicate the diagram that represents the structural level of the protein given.
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Answer
Primary: C
Secondary: A
Tertiary: B
In the table:
Primary structure is represented by diagram C, which shows a polypeptide sequence.
Secondary structure is represented by diagram A, which illustrates the alpha-helix formation of proteins.
Tertiary structure is represented by diagram B, which depicts the three-dimensional shape of the human interferon protein.
Step 2
Name the molecular sub-unit of a protein.
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Answer
The molecular sub-unit of a protein is an amino acid.