Multiple Choice
Where is dystrophin, the protein that is defective in muscular dystrophy, normally found?
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4. Biomolecules
Proteins
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Glucose molecules are to starch as ________ are to proteins.
A
fatty acids
B
amino acids
C
monosaccharides
D
nucleotides
Verified step by step guidance1
Understand the relationship described in the question: Glucose molecules are the building blocks (monomers) of starch, which is a polymer. Similarly, the question is asking for the building blocks of proteins.
Recall that proteins are macromolecules made up of smaller units called amino acids. These amino acids are linked together by peptide bonds to form a protein chain.
Eliminate the incorrect options: Fatty acids are the building blocks of lipids, not proteins. Monosaccharides are the building blocks of carbohydrates, such as starch. Nucleotides are the building blocks of nucleic acids, such as DNA and RNA.
Identify the correct answer: Amino acids are the monomers that combine to form proteins, just as glucose molecules (a type of monosaccharide) combine to form starch.
Conclude that the correct analogy is: Glucose molecules are to starch as amino acids are to proteins.
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