MCQ
Vitamin serves the function of
  • A
    An enzyme
  • B
    A coenzyme
  • C
    A substrate
  • D
    A hormone

Answer

  1. A coenzyme

Explanation:

A cofactor is a non - protein chemical compound or metallic ion which is required for the brisk activity of the enzyme.

Vitamins acts as a precursor for many organic cofactors like vitamins B1, B2, B6, B12, niacin, folic acid) or as coenzymes themselves (e.g., vitamin C).

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

Very purest form of $N_2$ is prepared by thermal decomposition of 
Product $(A)$ is
Match List $I$ with List $II$.

List $I$ List $II$
$A$ van't Hoff factor, $i$ $I$ Cryoscopic constant
$B$ $k _{ f }$ $II$ Isotonic solutions
$C$ Solutions with same osmotic pressure $III$ $\frac{Normal\,molar\,mass}{Abnormal\,molar\,mass}$
$D$ Azeotropes $IV$ Solutions with same composition of vapour above it

Choose the correct answer from the options given below :

On the basis of information given below mark the correct option.

Information:

  1. In bromoethane and chloroethane mixture intermolecular interactions of A–A and B–B type are nearly same as A–B type interactions.
  2. In ethanol and acetone mixture A–A or B–B type intermolecular interactions are stronger than A–B type interactions.
  3. In chloroform and acetone mixture A–A or B–B type intermolecular interactions are weaker than A–B type interactions.
    Which of the following reaction will give carbonyl compound as major product ?
    The coordination number and the oxidation state of the element $'E'$ in the complex

    $[E (en)_2 (C_2O_4)]NO_2$ (where $(en)$ is ethylene diamine) are, respectively,

    Which one is the most likely formula of $CrCl_3.6H_2O$ if $\frac{2}{3}$ of total chlorine of  the compound is $ppt$. by adding $AgNO_3$ to its aqueous solution: 
    Oxidation state of nitrogen is incorrectly given for

    Compound $\to$ Oxidation state

    A compound gives a positive test with $I_2/NaOH$ and is extracted from benzene  by saturated $NaHSO_3$. It may be
    Among the properties $(a) $ reducing $ (b) $ oxidising $(c)$  complexing, the set of properties shown by $C{N^ - }$ ion towards metal species is