DP Biology (last assessment 2024)
Question 19M.3.HL.TZ2.b.i
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.HL.TZ2.b.i |
| Level | HL | Paper | 3 | Time zone | TZ2 |
| Command term | Identify | Question number | b.i | Adapted from | N/A |
b.i.
[Maximum mark: 1]
19M.3.HL.TZ2.b.i
The drawing shows part of a Thunbergia grandiflora plant. It has been widely cultivated as an ornamental garden plant.
[Source: from Wight, R., Icones Plantarum Indiae Orientalis, vol. 3 (1846)]
The drawing shows a section through a T. grandiflora flower, which contains a honeybee (Apis mellifera).
[Source: © D G Mackean (www.biology-resources.com/drawing-plant-flower-tropical-06.html)]
Identify the structure labelled X.
[1]
Markscheme
ovule ✔
Examiners report
This question was derived from the skill of drawing half-views of animal pollinated flowers and the understanding of mutualistic relationships involved in plant reproduction. A large number could identify the ovule, but many incorrect answers, such as ovary, were also seen, as well as totally irrelevant answers.
