Zadanie 4a
(i) Identify the graph type. (ii) Estimate the concentration isotonic to this tissue.
- Materiał graficzny
Measuring osmotic changes in plant tissue
Analyse mass or length changes to estimate isotonic concentration and interpret variation or uncertainty in repeated measurements.
Tę umiejętność sprawdza 8 zadań wzorowanych na arkuszach IB z lat 2023–2026.
Zadania sprawdzające tę umiejętność: 8 Otwórz w wyszukiwarce z filtrami
Zadanie 4b
Compare and contrast the results at 0.75 and 1.00 mol L⁻¹.
- Materiał graficzny
Zadanie 1b
Describe two factors to keep constant for an accurate estimate.
Zadanie 1b
Explain how these data can be used to estimate the tissue solute concentration.
Zadanie 1c
Estimate the tissue solute concentration.
Zadanie 4
Living epidermal cells from a plant leaf are transferred from distilled water to a strongly hypertonic solution. What change is expected? A. The cell wall dissolves immediately B. Water enters until the protoplast bursts through the wall C. The vacuole expands…
Zadanie 3
Equal cylinders cut from a storage root are placed separately in sucrose solutions of 0.00, 0.20, 0.40, 0.60 and 0.80 mol dm⁻³. The solution isotonic with the tissue is 0.35 mol dm⁻³. Assuming the sucrose does not enter the cells during the test, how many…
Zadanie 3
Equal cylinders cut from a storage root are placed separately in sucrose solutions of 0.00, 0.20, 0.40, 0.60 and 0.80 mol dm⁻³. The solution isotonic with the tissue is 0.35 mol dm⁻³. Assuming the sucrose does not enter the cells during the test, how many…