DP Biology (last assessment 2024)
Question 19M.3.HL.TZ2.a.ii
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.HL.TZ2.a.ii |
| Level | HL | Paper | 3 | Time zone | TZ2 |
| Command term | State | Question number | a.ii | Adapted from | N/A |
a.ii.
[Maximum mark: 1]
19M.3.HL.TZ2.a.ii
Citric acid is produced on an industrial scale and global production is over 1.4 million tons
per year with a rising trend in demand.
State the scientific name (binomial) of the microorganism usually used in this process.
[1]
Markscheme
Aspergillus niger ✔
Both names in full required.
Examiners report
Candidates did generally well in all parts of this question.
