Consider the following statements about the structure of proteins - VCE - SSCE Chemistry - Question 5 - 2012 - Paper 1
Question 5
Consider the following statements about the structure of proteins.
1. The primary structure of a protein is determined by the sequence of amino acid residues.
2. T... show full transcript
Worked Solution & Example Answer:Consider the following statements about the structure of proteins - VCE - SSCE Chemistry - Question 5 - 2012 - Paper 1
Step 1
Evaluate Statement 1
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Answer
Statement 1 is true. The primary structure of a protein refers to the linear sequence of amino acids, which are linked by peptide bonds. This sequence is determined by the genetic code.
Step 2
Evaluate Statement 2
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Answer
Statement 2 is also true. The secondary structure of a protein arises from hydrogen bonding between the backbone amide and carbonyl groups, leading to structures like alpha helices and beta sheets.
Step 3
Evaluate Statement 3
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Answer
Statement 3 is true as well. The tertiary structure of a protein is formed through interactions among the side chains (R groups) of the amino acids, including hydrogen bonds, ionic interactions, and hydrophobic effects.
Step 4
Conclude the Truthfulness of Statements
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Answer
Since all three statements are true, the correct option is D: I, II and III are all true.
