A protein-based fibre could be constructed from repeated monomers of
A - VCE - SSCE Biology - Question 4 - 2007 - Paper 1
Question 4
A protein-based fibre could be constructed from repeated monomers of
A. C₁₈H₃₅N₃COOH
B. CH₂(CH₂)₂COOH
C. C₆(H₂O)₆
D. C₈H₁₈COCl
Worked Solution & Example Answer:A protein-based fibre could be constructed from repeated monomers of
A - VCE - SSCE Biology - Question 4 - 2007 - Paper 1
Step 1
A. C₁₈H₃₅N₃COOH
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Answer
This molecule, which contains nitrogen as part of the amine group, can indicate a structure similar to amino acids. Amino acids are the building blocks of proteins, thus this option supports the formation of a protein-based fiber.
Step 2
B. CH₂(CH₂)₂COOH
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Answer
This structure resembles a fatty acid rather than an amino acid. Without a nitrogen-containing group, it cannot contribute to a protein-based fiber.
Step 3
C. C₆(H₂O)₆
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Answer
This represents a carbohydrate structure (glucose), as it consists of carbon and water. Carbohydrates do not form proteins and thus cannot create a protein-based fiber.
Step 4
D. C₈H₁₈COCl
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Answer
This compound appears to be a halogenated alkane, which is not involved in protein synthesis. Therefore, it cannot form a protein-based fiber.
