MEDIUM
JEE Main/Advance
IMPORTANT
Earn 100

Glucose and fructose are both reducing sugars. Why is sucorse regarded as a non-reducing sugar?

Important Questions on Biomolecules

MEDIUM
JEE Main/Advance
IMPORTANT

(i) Name the type of linkages responsible for the formation of primary and secondary structures of proteins.

(ii) On electrolysis in acidic solution, α-amino acids migrate towards cathode while in alkaline medium, they migrate towards anode. Explain.

(iii) What are essential and non-essential amino acids. Give two example of each.

EASY
JEE Main/Advance
IMPORTANT
Glycine exist as a dipolar ion, while anthranilic acid does not. Explain.
HARD
JEE Main/Advance
IMPORTANT

Compound A, C6H12O6, is oxidized by bromine water into a monobasic acid and also reduces Tollen's reagent and Fehling's solution. It also responds to the following reactions. Identify the compound A.

Question Image

HARD
JEE Main/Advance
IMPORTANT
What is a peptide linkage? What is the geometry and bond lengths in a peptide molecule?
EASY
JEE Main/Advance
IMPORTANT
When the ketohexose, D- fructose is treated with phenyl hydrazine it produces an osazone that is identical with the one prepared from either D-+ glucose or D-+ mannose. How is the configuration of D- fructose related to those of D-+ glucose and D-+ mannose?