Q. Which of the following statements about monosaccharide structure is true?
A) Monosaccharides can be classified according to the spatial arrangement of their atoms.
B) Aldoses and ketoses differ in the position of their hydroxyl groups.
C) A six-carbon sugar is called a pentose.
D) All monosaccharides contain carbon, hydrogen, oxygen, and nitrogen atoms.
✔ Correct Answer: Monosaccharides can be classified according to the spatial arrangement of their atoms.
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