MCQ
The main structural of protein is
  • A
    The ester linkage
  • B
    The ether linkage
  • The peptide linkage
  • D
    All of these

Answer

Correct option: C.
The peptide linkage
c
Proteins are linear polymers formed by linking the -carboxyl group of one amino acid to the -amino group of another amino acid with a peptide bond.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The correct sequence of ligands in the order of decreasing field strength is:
Match the column?
Column $-I$ Column $-II$
$(A)$ Ionisation potential $(P)\;  O < F < N$
$(B)$ Electronegativity $(Q)\;  N < O < F$
$(C) \;Z_{eff}$ $(R) \;O < N < F$
$(D)$ Electron affinity $(S)\; N < C< O$
Decreasing order of acid strengths is

$\mathop {Ph - OH}\limits_{(A)} ,\,\,\,\,\mathop {Ph - C{H_2} - OH}\limits_{(B)} ,\,\,\,\,\mathop {Ph - C{O_2}H}\limits_{(C)} ,\,\,\,\mathop {Ph - C{H_2}-\mathop N\limits^ \oplus  {H_3}}\limits_{(D)} $

Consider the following ${E^0}$values :

${E^0}_{F{e^{3 + }}/F{e^{2 + }}}$ $=$ $ + 0.77\;V$

${E^0}_{S{n^{2 + }}/Sn} = - 0.14\;V$ Under standard conditions the potential for the reaction $S{n_{(s)}} + 2F{e^{3 + }}(aq) \to 2F{e^{2 + }}(sq) + S{n^{2 + }}(aq)$ is ............ $\mathrm{V}$

Choose the correct statement
Given a $0.1\,M$ solution of each of the following. Which solution has the lowest $pH$
Which of the following is most electronegative
$A + 2Cl^- $ $→$ $B$

Where $A$ is $PCl^+_4$ while $B$ is $PCl^-_ 6$

Which of the following statement is INCORRECT :

$(I)$ $B$ to $A$ involvement of number of $d-$orbital in hybridization increases

$(II)$ $A$ to $B$ precentage of $p-$character in $P-Cl$ bond increases

$(III) $ Number of covalent bond in $A$ and $B$ are same

$(IV)$ $B$ is product of Lewis acid-base interaction which is associated with super octet molecule only

The total magnetic quantum numbers for $d$-orbital is given by
Which does not show inert pair effect ?