Which among the following is called fruit sugar?

(a)

Glucose

(b)

Fructose

(c)

Sucrose

(d)

Maltose

Disaccharides have general formula

(a)

C_n(H₂O)_n

(b)

(CO₂)_n n,

(c)

C_n(H₂O)_n-1

(d)

C_n(H₂O)_2n-l

Name the base present only in RNA

(a)

adenine

(b)

guanine

(c)

uracil

(d)

thymine

Which is a monosaccharide among the following?

(a)

Sucrose

(b)

Cellulose

(c)

Maltose

(d)

Glucose

Identify the reducing sugar.

(a)

Sucrose

(b)

Cellulose

(c)

Starch

(d)

Glucose

Sucrose is not

(a)

a di-saccharide

(b)

a non-reducing sugar

(c)

hydrolysed to only glucose

(d)

hydrolysed to glucose & fructose

Sucrose contains glucose and fructose linked by

(a)

C₁ - C₁

(b)

C₁ - C₂

(c)

C₁ - C₄

(d)

C₁ - C₆

Glucose is not oxidised to gluconic acid by

(a)

Br₂/H₂O

(b)

Fehling's solution

(c)

Tollen's reagent

(d)

Conc.HNO₃

Inversion of sucrose refers to

(a)

oxidation of sucrose

(b)

reduction of sucrose

(c)

hydrolysis of sucrose to glucose and fructose

(d)

polymerisation of sucrose

The amino acid without chiral carbon is

(a)

Glycine

(b)

Alanine

(c)

Proline

(d)

Tyrosine

The building block of proteins are

(a)

α - hydroxy acids

(b)

α-amino acids

(c)

β-hydroxy acids

(d)

β-amino acids

Which is not true of amino acid?

(a)

amino acid forms zwitter ion

(b)

has isoelectric point

(c)

dual behaviours

(d)

amino acid is insoluble in NaOH solution

Two amino acids say A, B react to give

(a)

two dipeptides

(b)

three dipeptides

(c)

four dipeptides

(d)

only one

A dipeptide does not have

(a)

two peptide units

(b)

portions of two amino acids

(c)

an amino group

(d)

salt like structure

Proteins are not sensitive to

(a)

acids

(b)

bases

(c)

elevated temperature

(d)

water