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IB Biology HL D3.1.8 Sexual Reproduction in Flowering Plants Questions

Interpret flower structures and trace pollen transfer, pollen-tube growth, fertilization and embryo formation in IB Biology HL D3.1.8 questions.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Identify anthers, stigmas, ovaries and ovules and state where male gametes form in pollen and female gametes form in ovules.
  • Distinguish pollination as pollen transfer from anther to stigma from fertilization as fusion of male and female gametes.
  • Trace pollen-tube growth to the ovule and explain fertilization followed by embryo development inside the seed.
  • Explain how mutualistic pollinators improve sexual reproductive success in angiosperms.

IB Biology HL D3.1.8 Sexual Reproduction in Flowering Plants Questions question 1

[Maximum number: 3]

Angiospermophyta are vascular flowering plants.

The flowers of angiospermophyta are used for sexual reproduction. Outline three processes required for successful reproduction of angiospermophyta.

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