Which of the following is a Ketose?
Glucose
Erythrose
Fructose
Ribose
Monosaccharides are those sugars that cannot be hydrolyzed into simpler carbohydrates. They may be classified as trioses, tetroses, pentoses, hexoses, or heptoses, depending upon the number of carbon atoms (3-7), and as aldoses or ketoses, depending on whether they have an aldehyde or ketone groupClassification of Impoant SugarsAldosesKetosesTrioses (C3H6O3)Glycerose(glyceraldehyde)DihydroxyacetoneTetroses (C4H8O4)ErythroseErythrulosePentoses (C5H10O5)RiboseRibuloseHexoses (C6H12O6)GlucoseFructoseHeptoses (C7H14O7) -------SedoheptuloseRef: Harpers Biochemistry; 30th edition; Chapter 15; Carbohydrates of Physiological Significance
membrane structure and function