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BIO NMDCAT Carbohydrates
nmdcat.online June 27, 2026

In the context of carbohydrate classification, a triose sugar serves as a critical intermediate in metabolic pathways. The simplest aldose and ketose trioses are, respectively

A. Erythrose and Erythrulose
B. Glyceraldehyde and Dihydroxyacetone
✓
C. Ribose and Ribulose
D. Glucose and Fructose

📝 Explanation

Trioses are 3-carbon monosaccharides. The simplest aldose (aldehyde-containing) triose is glyceraldehyde. The simplest ketose (ketone-containing) triose is dihydroxyacetone. Both are key intermediates in glycolysis and photosynthesis.

📖 Additional Information

  • Erythrose and Erythrulose
  • Glyceraldehyde and Dihydroxyacetone
  • Ribose and Ribulose
  • Glucose and Fructose

Trioses are 3-carbon monosaccharides. The simplest aldose (aldehyde-containing) triose is glyceraldehyde. The simplest ketose (ketone-containing) triose is dihydroxyacetone. Both are key intermediates in glycolysis and photosynthesis.

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