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IB Biology SL D4.2.10 Plastic Pollution of Oceans Questions

Trace how macroplastics and microplastics harm marine organisms through ingestion, entanglement, fragmentation and toxic transport.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain how marine plastic ingestion fills or damages digestive systems and can cause starvation, choking or reduced predator escape.
  • Explain how macroplastic entanglement and fragmentation can injure marine organisms and transport toxins into food webs.

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Study D4.2.10—Plastic pollution of oceans conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL D4.2.10 Plastic Pollution of Oceans Questions question 1

[Maximum number: 2]

Data from the International Union for Conservation of Nature (IUCN) indicates that the population numbers of many mammal species are decreasing. The chart shows reasons for the decrease and the number of species in each category of danger.

Figure for Question IB Biology SL D4.2.10 Plastic Pollution of Oceans Questions question 1 — IB Biology SL

Explain the impact of plastic waste on Laysan albatrosses (Phoebastria immutabilis).

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