10 Questions
D-glyceraldehyde has no optical isomers.
True
L-glycerose's OH group is on the right.
False
Rhamnose is a common aldopentose sugar found in plants.
False
Pentoses contain four carbon atoms.
False
Aldopentose sugars have the possibility for optical isomerism due to the presence of four asymmetric carbon atoms.
False
Pentoses can be differentiated from hexoses because common bread yeast ferments pentoses but not hexoses.
False
Dihydroxyacetone is a ketose compound.
True
Pentoses are commonly present in human urine.
False
Glycerol has two forms called D-glycerose and L-glycerose.
True
Uronic acids are a type of hemicellulose compound.
False
Test your knowledge on carbohydrate structures, including pyranose and furanose forms, Haworth formulas, and the relationship to heterocyclic compounds. Also, explore the process of photosynthesis, the source of energy for plants and animals.
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