MCQ
Combination of proteins with nucleic acids give:
- AEnzymes
- BPolypeptides
- CNucleo proteins
- DDipeptides
Explanation:
Combination of proteins with nucleic acids gives nucleoproteins. Nucleic acids are the prosthetic group present in nucleoproteins.
Nucleoproteins are proteins of cell nuclei and are main component of chromatin.
They are present in every living cell a well as in virus and baceteria.
Example- protamines, histones.
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Given : $K_b(H_2O) = 0.51\, Kkg \,mol^{-1}$
$N_A = 6 × 10^{23}$
$[Li = 7, \,\,Na = 23$, $K = 39,\,\, Rb = 85.5$ , $Cs = 133, \,\,Cl = 35.5]$
| $I$ | $II$ | |
| $[Cr(H_2O)_6]^{+2}$ | $[Cr(H_2O)_6]^{+3}$ | $(a)$ |
| $[Fe(H_2O)_6]^{+3}$ | $[Fe(CN)_6]^{-3}$ | $(b)$ |
| $[Fe(CN)_6]^{+3}$ | $[Ru(CN)_6]^{-3}$ | $(c)$ |
| $[NiF_6]^{-4}$ | $[NiF_6]^{-2}$ | $(d)$ |
Assertion $A$: Helium is used to dilute oxygen in diving apparatus.
Reason $R:$ Helium has high solubility in $O _2$.
In the light of the above statements, choose the correct answer from the options given below