Zadania wzorowane na pytaniach z tego arkusza: te same umiejętności, format i punktacja, inne dane i kontekst. Treści arkusza IB nie publikujemy.
W bazie 10 zadań z tego arkusza, razem 21 punktów, każde z kluczem i schematem punktowania. Najwięcej zadań sprawdza: Biological calculations, statistics and graphs (3), Factors determining nerve conduction speed (2), Measuring osmotic changes in plant tissue (2).
Rozwiąż arkuszCały arkusz po kolei. Wynik na końcu.
Dodaj cały arkusz do zestawu(ii) State a function of a mitochondrion in an animal cell. (iii) A microscope image has a magnification of 30 000×. Use the calibrated ruler beneath its scale bar to calculate the actual distance represented by the bar in µm.
Compare and contrast cytoplasmic ribosomes in a liver cell with those in a bacterium.
State one transport function of phloem in a flowering plant.
Grasses colonize a windy coastal dune with rapidly draining sand. Explain two adaptations these grasses may possess for this habitat.
(i) Identify the type of scale used on both axes. (ii) Suggest why these scales are useful here. (iii) Identify the overall relationship between diameter and conduction speed.
Outline the structural feature that lets a mammalian axon conduct at a speed comparable with a much wider squid axon.
Describe the route followed by a pain-triggered withdrawal reflex.
(i) Identify the graph type. (ii) Estimate the concentration isotonic to this tissue.
Compare and contrast the results at 0.75 and 1.00 mol L⁻¹.
Explain what could happen if a freshwater single-celled organism without a cell wall were exposed to these solutions.
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