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Give difference between polypeptides and...

Give difference between polypeptides and proteins.

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Peptide linkage
The linkage of two a-amino acid molecules is known as peptide linkage. This linkage is through -CONH-bond. For example,
`underset(alpha-"amino acid")(NH_2-CH_2 ) - COOH + H_2N - CH_2 - COOH underset(-H_2O) to underset("Peptide linkage")ubrace(NH_2-CONH - CH_2-COOH)`
Polypeptides
The peptides which contain large number of a-amino acids (less than 100) are known as polypeptides. They have molecular masses upto 10,000u.
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OMEGA PUBLICATION-BIOMOLECULES -MULTIPLE CHOICE QUESTIONS
  1. Give difference between polypeptides and proteins.

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  2. Distinguish between the following: Glycolysis and Fermentation

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  3. Molisch test is answered by

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  4. Last product of protein digestion is

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  5. Express the following mathematical operations in scientific notation :...

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  6. Express the following mathematical operations in scientific notation :...

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  7. Express 900.0 in scientific notation

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  8. Express 2.2 (10*4) . 3.3 (10*5) in scientific notation

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  9. Express the following to four significant figures : 6.608792

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  10. Express the following to four significant figures : 42.392800

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  11. When amylases catalyse the hydrolysis of starch the final product obta...

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  12. Which is correct statement ?

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  13. Calculate equivalent weight of calcium hydroxide.

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  14. Both deoxyribose and ribose belong to a class of sugars called:

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  15. Which is not a reducing sugar?

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  16. Glucose overset (H2O) to C2H5OH + CO2 + Energy. The above reactio...

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  17. Which of the following carbohydrate is an essential constituent of pla...

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  18. The sweetest sugar among the following is

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  19. The disease Beriberi is caused due to deficiency of vitamin

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  20. Where is thyroxine hormone secreted?

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  21. The base unit that is absent in DNA is

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