Biomolecules

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From the vitamins \(\mathrm{A}, \mathrm{B}_1, \mathrm{~B}_6, \mathrm{~B}_{12}, \mathrm{C}, \mathrm{D}, \mathrm{E}\) and \(\mathrm{K}\), the number of vitamins that can be stored in our body is _________.

Sugar which does not give reddish brown precipitate with Fehling's reagent, is :

The total number of correct statements, regarding the nucleic acids is _________.
A. RNA is regarded as the reserve of genetic information
B. DNA molecule self-duplicates during cell division
C. DNA synthesizes proteins in the cell
D. The m...

Number of compounds among the following which contain sulphur as heteroatom is ___________.
Furan, Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine

Type of amino acids obtained by hydrolysis of proteins is :

Match List I with List II

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Two nucleotides are joined together by a linkage known as :

Which structure of protein remains intact after coagulation of egg white on boiling?

If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is :

The number of tripeptides formed by three different amino acids using each amino acid once is ______.

Sulphur (S) containing amino acids from the following are:
(a) isoleucine (b) cysteine (c) lysine (d) methionine (e) glutamic acid

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Match List I with List II

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Match List I with List II

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A protein '\(\mathrm{X}\)' with molecular weight of \(70,000 \mathrm{~u}\), on hydrolysis gives amino acids. One of these amino acid is

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Ketoses give Seliwanoff's test faster than Aldoses.
Reason (R) : Ketoses undergo \(\beta\)-elimination followed by fo...

A short peptide on complete hydrolysis produces 3 moles of glycine (G), two moles of leucine (L) and two moles of valine (V) per mole of peptide. The number of peptide linkages in it are ________.

Number of cyclic tripeptides formed with 2 amino acids A and B is :

Following tetrapeptide can be represented as

(F, L, D, Y, I, Q, P are one letter codes for amino acids)

Match items of Row I with those of Row II.
Row I :

Row II :
(i) \(\alpha\)-\(\mathrm{D}\)-\((-)\)-\(\mathrm{Fructofuranose}\)
(ii) \(\beta\)-D-\((-)\)-Fructofuranose
(iii) \(\alpha\)-D-\((-)\) Glucopyranose
(iv) \(\beta\)-D-\((-)\)-Glucopy...

Uracil is a base present in RNA with the following structure. % of N in uracil is ___________

Given:
Molar mass N = 14 g mol\(^{-1}\)
O = 16 g mol\(^{-1}\)
C = 12 g mol\(^{-1}\)
H = 1 g mol\(^{-1}\)

Total number of tripeptides possible by mixing of valine and proline is ___________

Match List I with List II

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The correct representation in six membered pyranose form for the following sugar [X] is

Testosterone, which is a steroidal hormone, has the following structure.

The total number of asymmetric carbon atom/s in testosterone is ____________.

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : \(\alpha\)-halocarboxylic acid on reaction with dil. \(\mathrm{NH_3}\) gives good yield of \(\alpha\)-amino carboxyli...

All structures given below are of vitamin C. Most stable of them is :

Which is not true for arginine?

The products formed in the above reaction are

The naturally occurring amino acid that contains only one basic functional group in its chemical structure is

In an oligopeptide named Alanylglycylphenyl alanyl isoleucine, the number of \(\mathrm{sp}^{2}\) hybridised carbons is __________.

L-isomer of tetrose \(\mathrm{X}\left(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{O}_{4}\right)\) gives positive Schiff's test and has two chiral carbons. On acetylation, '\(\mathrm{X}\)' yields triacetate. '\(\mathrm{X}\)' also undergoes followi...

Number of compounds from the following which will not produce orange red precipitate with Benedict solution is ___________.
Glucose, maltose, sucrose, ribose, 2-deoxyribose, amylose, lactose

The one that does not stabilize 2\(^\circ\) and 3\(^\circ\) structures of proteins is

The sugar produced after complete hydrolysis of DNA is

C6H12O6 \(\buildrel \text{Zymase} \over \longrightarrow\) A \(\mathrel{\mathop{\kern0pt\longrightarrow} \limits_\Delta ^\text{NaOI}}\) B + CHI3
The number of carbon atoms present in the product B is _______________.

Sugar moiety in DNA and RNA molecules respectively are

The structure of protein that is unaffected by heating is

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 ...

Stability of \(\alpha\)-Helix structure of proteins depends upon

When sugar 'X' is boiled with dilute H2SO4 in alcoholic solution, two isomers 'A' and 'B' are formed. 'A' on oxidation with HNO3 yields saccharic acid where as 'B' is laevorotatory. The compound 'X' is :

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

The formulas of A and B for the following reaction sequence

are

L-isomer of a compound 'A' (C4H8O4) gives a positive test with [Ag(NH3)2]+. Treatment of 'A' with acetic anhydride yields triacetate derivative. Compound 'A' produces an optically active compound (B) and an optically inactive compound (C) o...

Given below are two statements.
Statement I : Maltose has two \(\alpha\)-D-glucose units linked at C1 and C4 and is a reducing sugar.
Statement II : Maltose has two monosaccharides : \(\alpha\)-D-glucose and \(\beta\)-D-glucose linked at C1...

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 Match List - II.

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The number of oxygens present in a nucleotide formed from a base, that is present only in RNA is ___________.