Zadanie 1a
Describe changes in annual releases from 1964 to 2022.
- Materiał graficzny
Biology SL Paper 2, May 2026, TZ2
Zadania wzorowane na pytaniach z tego arkusza: te same umiejętności, format i punktacja, inne dane i kontekst. Treści arkusza IB nie publikujemy.
W bazie 20 zadań z tego arkusza, razem 66 punktów, każde z kluczem i schematem punktowania. Najwięcej zadań sprawdza: Evaluating biological evidence and methods (4), Biological calculations, statistics and graphs (3), Population immunity and transmission (3).
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Dodaj cały arkusz do zestawuZadanie 1b
Calculate the number of birds released in 2020.
- Materiał graficzny
Zadanie 1c
Evaluate the hypothesis that mammals make up the largest part of the hawks’ diet.
- Materiał graficzny
Zadanie 1d
Analyse the tree survey for trends in bark damage.
- Materiał graficzny
Zadanie 1e
Using the evidence, discuss whether killing hawks would improve the long-term sustainability of the woodland and the released quail.
- Materiał graficzny
Zadanie 2a
State one substrate used in both aerobic and anaerobic respiration in humans.
Zadanie 2b
Distinguish human aerobic respiration from human anaerobic respiration.
Zadanie 2c
Outline structural adaptations of lungs that support oxygen uptake.
Zadanie 3a
An epiphytic orchid grows on a branch high above a shaded forest floor. State one advantage of this position to the orchid.
Zadanie 3b
Outline one advantage and one disadvantage for a tree rooted in seasonally flooded soil.
Zadanie 3c
A heron catches aquatic prey while wading through shallow water. Identify one adaptation that assists prey capture or killing.
Zadanie 4a
Outline functions of thyroxin in humans.
Zadanie 4b
In a hypothetical exposure, a radioactive iodine isotope accumulates in thyroid cells. (i) Deduce how its radiation could initiate cancer. (ii) Predict, with a reason, whether the resulting thyroid-cell mutation would be transmitted to the person’s children.
Zadanie 4c
The pedigree shows a rare inherited overactivity of a gland. Discuss the most likely inheritance pattern using evidence from the diagram.
- Materiał graficzny
Zadanie 5a
Explain how a population could establish herd immunity to reduce outbreak risk.
Zadanie 5b
Outline persistent changes that enable an immune person to respond to later exposure.
Zadanie 5c
Deduce why Alpha requires a particularly high immune proportion.
Zadanie 5d
In this model, limited Gamma vaccine supplies are offered first to people at high risk of severe illness and workers with frequent exposure. Suggest reasons for this policy.
Zadanie 6
Common cellular features coexist with the diversity produced by evolution. (a) Describe the roles of components shared across cellular organisms. (b) Discuss how separate populations can become distinct species. (c) Outline key features of the genetic code.
Zadanie 7
A membrane’s molecular organization underlies selective transport and electrical properties. (a) Outline phospholipid structure and its interactions with water. (b) Explain how proteins enable substances to cross membranes. (c) Describe the establishment of a…