IB Biology HL D3.1.9 Insect Pollinated Flower Features Questions
Link nectar, petals, scent, sticky pollen and stigma features to pollen transfer by insects in IB Biology HL D3.1.9.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Explain how nectar or sugary secretions attract insects that transfer pollen.
- Relate petals, scent/odour, sticky pollen and stigma features to attachment and delivery of pollen by insects.
- Draw or interpret an animal-pollinated flower and identify adaptations that improve insect-pollination success.
IB Biology HL D3.1.9 Insect Pollinated Flower Features Questions question 1
[Maximum number: 4]
Draw a half-view of an animal-pollinated flower.
a
sepals as outermost part of flower
As the question does not specify a labelled halfview, allow some marks for unlabeled structures: award one mark for any two of the six structures in the mark scheme (mpa to mpf). It must be clear what each unlabeled part is. The maximum mark is therefore 3 for an unlabeled half-view.
4 max
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