Q BankQuestion BankDocsDocuments

D3.1.9—Insect-pollinated flower features

Insect-pollinated flowers use traits such as odour, nectar, colour and suitable flower structure to attract animals that transfer pollen effectively.

Syllabus
First assessment 2025
Objective
D3.1.9
Level
HL

Exam analysis

Chance of appearing3%of analysed past papers
Latest appearanceMay 2023
Most common paperPaper2
Typical marks1–4

Common command terms

  • Identify
  • Draw

Recent exam appearances

May 2023Paper2 ["HL"] · TZ23(c)[ 1 ]D3.1.9—Insect-pollinated flower features
November 2019Paper2 ["HL"] · TZ08(a)[ 4 ]D3.1.9—Insect-pollinated flower features
May 2018Paper1 ["HL"] · TZ226[ 1 ]D3.1.9—Insect-pollinated flower features
Practice this objective

Coverage 2018–2023 · Updated 16 Jul 2026

Concept essentials

  • Nectar attracts animals that can transfer pollen between flowers.
  • Specific odours or other signals can improve animal pollination.
  • Flower structure matters because pollinators must contact anthers and stigmas.
ConceptIB Biology HL