Zadanie 1a
Distinguish the appearance of the mapped skin atDay0 andDay10.
- Materiał graficzny
Biology SL Paper 2, November 2025, TZ3
Zadania wzorowane na pytaniach z tego arkusza: te same umiejętności, format i punktacja, inne dane i kontekst. Treści arkusza IB nie publikujemy.
W bazie 22 zadania z tego arkusza, razem 66 punktów, każde z kluczem i schematem punktowania. Najwięcej zadań sprawdza: Recording and interpreting biological data (3), Planning a biological investigation (2), Evaluating biological evidence and methods (2).
Rozwiąż arkuszCały arkusz po kolei. Wynik na końcu.
Dodaj cały arkusz do zestawuZadanie 1b
Explain how quantitative measurements from all participants could assess improvement.
- Materiał graficzny
Zadanie 1c
Comment on the investigation’s reliability.
- Materiał graficzny
Zadanie 1d
State the greatest overexpressing-fibroblast percentage in lesional tissue atDay0.
- Materiał graficzny
Zadanie 1e
Calculate the decrease in the mean overexpressing-fibroblast percentage in lesional tissue.
- Materiał graficzny
Zadanie 1f
Suggest why unaffected tissue was included.
- Materiał graficzny
Zadanie 1g
Explain conclusions supported by the expression data.
- Materiał graficzny
Zadanie 2a
Explain why28.7%thymine is expected.
Zadanie 2b
State a laboratory method for amplifying a chosen DNA region.
Zadanie 2c
Distinguish the nucleotides used in DNA and RNA.
Zadanie 3a
Outline why mosaic is an appropriate description.
Zadanie 3b
Draw a simplified phospholipid and label the regions showing amphipathic properties.
Zadanie 3c
Explain how changing extracellular oxygen concentration affects net diffusion into a cell when other factors are constant.
Zadanie 4a
Explain how diaphragm contraction brings air into the lungs.
Zadanie 4b
State another muscle group whose contraction contributes to inspiration.
Zadanie 4c
Outline the role of pulmonary surfactant.
Zadanie 5a
Define an autotroph.
Zadanie 5b
Describe the role of decomposers.
Zadanie 5c
Suggest why energy-transfer efficiencies differ among food chains.
Zadanie 5d
Suggest how expansion of cattle farming can affect global climate.
Zadanie 6
Nectar-feeding insects depend on flowering plants and can influence their evolution. (a) Outline links between the properties of glucose and its uses. (b) List human activities that threaten insect pollinators. (c) Explain how natural selection can produce…
Zadanie 7
Water properties affect both individual cells and whole plants. (a) Draw and label two interacting water molecules. (b) Outline what happens when animal and plant cells are immersed in pure water. (c) Explain transpiration and the adaptations of xylem vessels…