객관식
Which of the following is true of protein structure?
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2. Cell Chemistry & Cell Components
Proteins
객관식
Which of the following lists ranks these molecules in the correct order by size from smallest to largest?
A
Water, sucrose, glucose, protein
B
Protein, water, glucose, sucrose
C
Water, protein, sucrose, glucose
D
Glucose, water, sucrose, protein
E
Water, glucose, sucrose, protein
검증된 단계별 안내1
Understand the molecular structure and size of each molecule: Water (H₂O) is a simple molecule with a small molecular weight. Glucose (C₆H₁₂O₆) is a monosaccharide, larger than water. Sucrose (C₁₂H₂₂O₁₁) is a disaccharide, larger than glucose. Proteins are large macromolecules composed of amino acids, significantly larger than the other molecules listed.
Compare the molecular weights: Water has a molecular weight of approximately 18 g/mol. Glucose has a molecular weight of approximately 180 g/mol. Sucrose has a molecular weight of approximately 342 g/mol. Proteins vary greatly in size but are generally much larger than the other molecules.
Rank the molecules based on their molecular weights from smallest to largest: Water < Glucose < Sucrose < Protein.
Consider the complexity of the molecules: Water is a simple molecule, glucose is a single sugar unit, sucrose is composed of two sugar units, and proteins are complex chains of amino acids.
Verify the correct order: The correct ranking by size from smallest to largest is Water, Glucose, Sucrose, Protein.
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