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The correct statement in respect of prot...

The correct statement in respect of protein haemoglobin is that it

A

acts as an oxygen carrier in the blood.

B

forms antibodies and offers resistance to diseases.

C

enzymes are specific biological catalysts that can normally function at very high temperature `(T~ 1000K)`.

D

enzymes are specific biological catalysts that possess well-defined active sites.

Text Solution

Verified by Experts

The correct Answer is:
A
Haemoglobin acts as an oxygen carrier in the blood since it reacts with oxygen to form unstable oxyhaemoglobin which easily breaks to give back haemoglobin and oxygen.
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DISHA PUBLICATION-BIOMOLECULES -Exercise - 1 : Concept Builder ( Topicwise ) (Amino Acids , Proteins and Enzymes )
  1. Among the following organic acids, the acid present in rancid butter i...

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  2. A strongly alkaline solution of a monoaminodicarboxylic acid contains ...

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  3. Which of the following proteins destroy the antigen when it enters in ...

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  4. Number of essential amino acids in human is

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  5. Which of the following structures represents the peptide chain?

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  6. The helical structure of protein is stabilized by

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  7. Which functional group participates in the disulphide bond formation i...

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  8. Pepsin enzyme hydrolyses

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  9. Which of the following tests is not used for testing proteins :

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  10. The correct statement in respect of protein haemoglobin is that it

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  11. The enzyme which hydrolyses triglycerides to fatty acid and glycerol i...

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  12. Which one of the following metals is required as co-factor by all enzy...

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  13. Which of the nitrogen of histidine is first protonated ?

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  14. An electric current is passed through an aqueous solution ( buffered a...

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  15. A mixture of two amino acids having p1 9.60 and 5.40 can be separated

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  16. Imino acid among these compounds is

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  17. The structural feature which distinguishes proline from other natural ...

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  18. Which amino acid is achiral?

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  19. Denaturation of protein leads to loss of its biological activity by :-

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  20. The dipeptide, Gly. Ala has structure -

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