Biomolecules

Multiple Choice Questions

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Which one is the cofactor of carbonic anhydrase?

  • Iron (Fe)

  • Zinc (Zn)

  • Copper (Cu)

  • Magnesium (Mg)

B.

Zinc (Zn)

Many enzymes require the presence of an additional, nonprotein, cofactor. Some of these are metal ions such as Zn2+ (the cofactor for carbonic anhydrase), Cu2+, Mn2+, K+ and Na+. Some cofactors are small organic molecules called coenzymes. The vitamin-B are the precursors of coenzyme.

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    Vitamin-D is produced in human body in

    • muscles

    • nerves

    • skin

    • bone marrow

    Answer

    Which of the following vitamins are fat soluble?

    • A, B, C, K

    • A, B, D, E

    • A, D, E, K

    • A, D, C, K

    Answer

    Short Answer Type

    What is pro-enzyme?

    Answer

    Multiple Choice Questions

    Pellagra is caused due to deficiency of the vitamin

    • thiamine

    • niacinn

    • pyridoxin

    • biotin

    Answer
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    Which element is cause of itai 1/N desh itai disease

    • Hg

    • Cd

    • Pb

    • As

    Answer

    Which of the following is not a conjugated protein?

    • Peptone

    • Phosphoprotein

    • Lipoprotein

    • Chromoprotein

    Answer

    Feedback inhibition of enzymes is affected by which ofthe following

    • Enzyme

    • Substrate

    • End products

    • Intermediate end products

    Answer

    Which one is diaminodicarboxylic amino acid?

    • Cystine

    • Lysine

    • Cysteine

    • Aspartic acid

    Answer
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    Short Answer Type

    Name two sulphur containing and two basic amino acids.

    Answer
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