The amino acids tyrosine, lysine and glycine are constituents of many proteins. HN CH COH CH₂ =0 H₂N-CH-C-OH OH tyrosine (CH₂) NH2 lysine H₂N CH-C-OH H glycine (a) State the reagents and conditions you could use to break proteins down into amino acids. (b) Draw a ring around each chiral centre in the above molecules. [2] [1] (c) In aqueous solution amino acids exist as zwitterions. Draw the zwitterionic structure of glycine. .[1] (d) For each of the following reactions, draw the structure of the organic compound formed. (i) glycine + excess NaOH(aq) (ii) tyrosine + excess NaOH(aq)
The amino acids tyrosine, lysine and glycine are constituents of many proteins. HN CH COH CH₂ =0 H₂N-CH-C-OH OH tyrosine (CH₂) NH2 lysine H₂N CH-C-OH H glycine (a) State the reagents and conditions you could use to break proteins down into amino acids. (b) Draw a ring around each chiral centre in the above molecules. [2] [1] (c) In aqueous solution amino acids exist as zwitterions. Draw the zwitterionic structure of glycine. .[1] (d) For each of the following reactions, draw the structure of the organic compound formed. (i) glycine + excess NaOH(aq) (ii) tyrosine + excess NaOH(aq)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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![The amino acids tyrosine, lysine and glycine are constituents of many proteins.
HN CH COH
CH₂
=0
H₂N-CH-C-OH
OH
tyrosine
(CH₂)
NH2
lysine
H₂N CH-C-OH
H
glycine
(a) State the reagents and conditions you could use to break proteins down into amino
acids.
(b) Draw a ring around each chiral centre in the above molecules.
[2]
[1]
(c) In aqueous solution amino acids exist as zwitterions. Draw the zwitterionic structure of
glycine.
.[1]
(d) For each of the following reactions, draw the structure of the organic compound formed.
(i) glycine + excess NaOH(aq)
(ii) tyrosine + excess NaOH(aq)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd0106221-c928-47ec-b50b-1da27658f5e2%2Ff653d57f-c83d-4099-b978-d97af25f9820%2Fiwrehb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The amino acids tyrosine, lysine and glycine are constituents of many proteins.
HN CH COH
CH₂
=0
H₂N-CH-C-OH
OH
tyrosine
(CH₂)
NH2
lysine
H₂N CH-C-OH
H
glycine
(a) State the reagents and conditions you could use to break proteins down into amino
acids.
(b) Draw a ring around each chiral centre in the above molecules.
[2]
[1]
(c) In aqueous solution amino acids exist as zwitterions. Draw the zwitterionic structure of
glycine.
.[1]
(d) For each of the following reactions, draw the structure of the organic compound formed.
(i) glycine + excess NaOH(aq)
(ii) tyrosine + excess NaOH(aq)
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