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An activated amino acid A(H(2)NCHRCOX) r...

An activated amino acid `A(H_(2)NCHRCOX)` reacts with an amino acid `B(H_(2)NCHR'CO_(2)H)`. Which statement is correct about this reaction ?

A

The amino acids are cpupled by a peptide link of form `- CONH-`

B

Activation prevents reaction between two molecules of A

C

The reaction involves elimination of HX

D

A dipeptide is formed

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Peptide bond is formed between activated amino acid and normal acid with elimination of HX.
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AAKASH SERIES-PROTEINS AND NUCLEIC ACIDS -PRACTICE SHEET - 1
  1. Which of the following statement is not true ?

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  2. Which of the following is the major solute species in a solution of al...

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  3. An activated amino acid A(H(2)NCHRCOX) reacts with an amino acid B(H(2...

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  4. Which statement about proteins is correct ?

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  5. Peptides are compounds of amino acids joined by amide bonds. Which of ...

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  6. Which of the following is an important secondary structural feature in...

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  7. A protein can be denaturated by ……….

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  8. Which of the following combination are correct in case of proteins ?

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  9. alpha - amino acids are high melting crystalline solids because of the...

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  10. alpha - amino acids are high melting crystalline solids because of the...

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  11. alpha - amino acids are high melting crystalline solids because of the...

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  12. The product (A) is

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  13. Compound (B) is

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  14. The product (C ) is

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  15. {:("List - I","List - II"),("(A) Glycine","(p) Forms chloroacetic acid...

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  16. {:("List - I","List - II"),("(A) Acidic amino acid","(p) Valine"),("(B...

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  17. A tripeptide is composed equally of L - valine, L - tyrosine and L - a...

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  18. The number of polypeptide chains in insulin is ?

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  19. In an amino acid the Carboxylic group ionises at p^(Ka(1))=2.40 and...

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  20. Iso electric point of Alanine is p^(H)=6. At which p^(H), maximum conc...

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