Short Answer Type

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What is pro-enzyme?


A proenzyme (or zymogen) is an inactive enzyme precursor. It requires a biochemical change (such as a hydrolysis reaction revealing the active site, or changing the configuration to reveal the active site) for it to become  an active enzyme. It is secreted by pancreas.


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Multiple Choice Questions

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

  • Hg

  • Cd

  • Pb

  • As


Pellagra is caused due to deficiency of the vitamin

  • thiamine

  • niacinn

  • pyridoxin

  • biotin


Short Answer Type

Name two sulphur containing and two basic amino acids.


Multiple Choice Questions

Feedback inhibition of enzymes is affected by which ofthe following

  • Enzyme

  • Substrate

  • End products

  • Intermediate end products


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Vitamin-D is produced in human body in

  • muscles

  • nerves

  • skin

  • bone marrow


Which of the following vitamins are fat soluble?

  • A, B, C, K

  • A, B, D, E

  • A, D, E, K

  • A, D, C, K


Which one is the cofactor of carbonic anhydrase?

  • Iron (Fe)

  • Zinc (Zn)

  • Copper (Cu)

  • Magnesium (Mg)


Which one is diaminodicarboxylic amino acid?

  • Cystine

  • Lysine

  • Cysteine

  • Aspartic acid


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Which of the following is not a conjugated protein?

  • Peptone

  • Phosphoprotein

  • Lipoprotein

  • Chromoprotein


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