NEET Practice Questions (MCQs) with Answers & Solutions

The two forms of glucopyranose obtained from a solution of D-glucose are called anomers. Anomers are stereoisomers that differ in the configuration at the anomeric carbon atom, which is the carbon atom attached to two oxygen atoms.

Fact

C₂ epimer

 $\mathrm{Sucrose} + \mathrm{HOH} \stackrel{ {\mathrm{H}}^{+} }{\to } \mathrm{Glucose} + \mathrm{Fructose}$

Lysine is a basic amino acid due to the presence of an additional amino group (-NH2) in its side chain. Basic amino acids have a net positive charge at physiological pH and can accept protons due to their basic side chains.

Glucose is solid and water is liquid hence both can be separated by distillation.

 Nonreducing sugar A sugar that cannot donate electrons to other molecules and therefore cannot act as a reducing agent. Sucrose is the most common nonreducing sugar

(c) NH₂CH₂COOH (glycine) NH₂-CH-COOH (Alanine)
                                               l
                                              CH₃

(c) NH₂-CH₂-COOH (glycine)