DP Chemistry (last assessment 2024)
Question 18M.3.sl.TZ2.7a
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.sl.TZ2.7a |
| Level | sl | Paper | 3 | Time zone | TZ2 |
| Command term | Draw | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 2]
18M.3.sl.TZ2.7a
Amino acids are the building blocks of proteins.
(a)
Draw the dipeptide represented by the formula Ala-Gly using section 33 of the data booklet.
[2]
Markscheme
peptide bond
order of amino acids
Accept zwitterion form of dipeptide.
Accept a condensed structural formula or a skeletal structure.
Penalize missing hydrogens or incorrect bond connectivities once only in Option B.
[2 marks]
