Question

21) Which is NOT the correct description about macro-molecules?a) All monosaccharides are reducing sugars.b) Glycogen is one polysaccharides used to store energy in humans.c) All free amino acids have a peptide bond.d) Lipids are soluble in non-polar solvents.e) Honey solution cannot show grease-spot on unglazed paper.

Answer 1

The correct option is a) All monosaccharides are reducing sugars. Ony sugars with specific chemical groups (hemiacetals) are reducing sugars.