Which of the following is involved in formation of heme? from Ch

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 Multiple Choice QuestionsMultiple Choice Questions

401.

Fibrous protein are not present in

  • myosin

  • albumins

  • collagen

  • fibroin


402.

Which of the following is not a biopolyme?

  • Polysaccharide

  • Protein

  • Lipid

  • Nucleic acid


403.

Which of the following contains thymine?

  • m-RNA

  • r-RNA

  • t-RNA

  • None of the above


404.

Which of the following statements is true?

  • Denaturation of protein changes the primary structure of protein

  • All proteins act as biocatalyst

  • C-terminal amino acid in proteins is determined by Edman degradation

  • The pleated sheet structure of proteins was determined by Pauling


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405.

Which of the following is not present in DNA?

  • Adenine

  • Guanine

  • Uracil

  • Thymine


406.

Which of the following is not basic amino acid?

  • Leucine

  • Lysine

  • Arginine

  • Histidine


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407.

Which of the following is involved in formation of heme?

  • Lysine

  • Glycine

  • Tryosine

  • Arginine


B.

Glycine

Heme is the prosthetic group of hemoglobin, myoglobin and cycochromes. It is an asymmetric molecule.

The heme ring system is synthesised from glycine and succinyl -CoA. It begins with condensation of glycine and succinyl -CoA with decarboxylation to form 8-aminolurilinic acid (ALA).


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408.

The human body does not produce

  • enzyme

  • DNA

  • vitamins

  • hormones


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409.

HOH/ H+ Glucose + fructose

HOH/ H+ Glucose + glucose

HOH/ H+ Glucose + Galactose

The disaacharides A, B and C respectively are

  • lactose, sucrose and maltose

  • sucrose, maltose and lactose

  • sucrose, lactose and maltose

  • maltose, sucrose and lactose


410.

The coiled form of a fibrous protein is known as

  • α- and β- form

  • β- form

  • globular protein

  • α-form


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