Biomolecules

The structure of protein that is unaffected by heating is

The sugar produced after complete hydrolysis of DNA is

During the denaturation of proteins, which of these structures will remain intact ?

Glycosidic linkage between C1 of $\alpha$-glucose and C2 of $\beta$-fructose is found in

Which one of the following is a reducing sugar ?

Animal starch is the other name of

A sugar 'X' dehydrates very slowly under acidic condition to give furfural which on further reaction with resorcinol gives the coloured product after sometime. Sugar 'X' is

Match List - I with List - II.

Choose the correct answer from the options given below :

For the below given cyclic hemiacetal (X), the correct pyranose structure is :

The formulas of A and B for the following reaction sequence

$$\text{Fructose}\xrightarrow[\mathrm{H_3O^+}]{\mathrm{HCN}}A\qquad\text{Fructose}\xrightarrow[\text{(ii) HI/P}]{\text{(i) NaBH}_4}B$$

are

In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids) − (number of peptide bonds) is _______.

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Amylose is insoluble in water.

Reason R: Amylose is a long linear molecule with more than 200 glucose units.

In the light of the above statements, choose the correct answer from the options given below.

Given below are two statements:

Statement I: Glycogen is highly branched polysaccharide and commonly known as animal starch due to its similarity with amylopectin.

Statement II: Amylose is water insoluble and constitutes about 15-20% of starch.

In the light of the above statements, choose the most appropriate answer from the options given below:

Given:

$\text{D-Glucose} \xrightarrow{\ce{HNO3}} \mathbf P$, $[\alpha]_D = +52.7^\circ$

The compound(s), which on reaction with $\ce{HNO3}$ will give the product having degree of rotation, $[\alpha]_D = -52.7^\circ$ is(are)

Out of the following, which type of interaction is responsible for the stabilisation of α-helix structure of proteins ?

The Fischer projection of D-erythrose is shown below.

D-Erythrose and its isomers are listed as P, Q, R, and S in Column-I. Choose the correct relationship of P, Q, R, and S with D-erythrose from Column II.

The structure of a peptide is given below.

If the absolute values of the net charge of the peptide at pH = 2, pH = 6, and pH = 11 are $|z_1|$, $|z_2|$, and $|z_3|$, respectively, then what is $|z_1| + |z_2| + |z_3|$?

Which of the following statement(s) is(are) true?

Choose the correct option(s) from the following

The Fischer presentation of D-glucose is given below.

The correct structure(s) of β-L-glucopyranose is (are)