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Question 18M.2.SL.TZ1.b

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Date May 2018 Marks available [Maximum mark: 3] Reference code 18M.2.SL.TZ1.b
Level SL Paper 2 Time zone TZ1
Command term Draw Question number b Adapted from N/A
b.
[Maximum mark: 3]
18M.2.SL.TZ1.b

Draw an annotated diagram to show how a peptide bond is formed.

[3]

Markscheme

a. correct structure of two amino acids 

b. H2O lost 

c. C from COOH of one links to N of NH2/NH3+ from the other 

d. correct labelling of the peptide bond

e.g.

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