Zadanie 1a
Identify the microscope accessory used as a calibrated scale to measure cell dimensions.
Biology HL Paper 1B, 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 18 zadań z tego arkusza, razem 31 punktów, każde z kluczem i schematem punktowania. Najwięcej zadań sprawdza: Comparing absorption with photosynthetic action (3), Measuring joint mobility (2), Biological calculations, statistics and graphs (2).
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Dodaj cały arkusz do zestawuZadanie 1b
Compare and contrast the lytic and lysogenic pathways of bacteriophage lambda.
Zadanie 2a
Suggest the direction in which the finger should move when assessing this hypermobility.
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Zadanie 2b
Suggest a method for measuring the angle.
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Zadanie 2c
Estimate a threshold angle for the diagnosed group, using either the lowest observed value from one method or the fitted Method A value at the lowest Method B value in that group. Identify the method used.
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Zadanie 2d
Suggest a joint structure affected by the connective-tissue condition.
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Zadanie 2e
Describe the strength of association between the two methods.
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Zadanie 2f
Xylem contributes support as well as water transport in plants. Explain adaptations for these functions.
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Zadanie 3a
Identify the main light colour used in photosynthesis by each alga.
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Zadanie 3b
Deduce which alga is more suited to greater depth, giving a reason from its action spectrum.
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Zadanie 3c
Describe how to collect measurements for an action spectrum of an alga.
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Zadanie 3d
Outline photosystem structure and location.
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Zadanie 3e
State a technique for separating pigments in a leaf extract.
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Zadanie 4a
Calculate the percentage decrease from the maximum annual cleared area to the2016 value.
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Zadanie 4b
Suggest why small clearings increased while large clearings declined after2001.
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Zadanie 4c
Suggest one atmospheric consequence of large-scale forest transpiration.
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Zadanie 4d
Discuss how fragmenting a forest into isolated patches can change population gene pools.
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Zadanie 4e
Explain how reinforcing feedbacks can accelerate global warming.
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