Zadanie 2a
State the direction of net water movement across the membranes during the first three minutes.
- Materiał graficzny
Osmosis across a cell membrane
Predict water movement around cells and explain dynamic equilibrium in an isotonic environment.
Tę umiejętność sprawdza 6 zadań wzorowanych na arkuszach IB z lat 2022–2025.
Zadania sprawdzające tę umiejętność: 6 Otwórz w wyszukiwarce z filtrami
Zadanie 3b
Molecules move across the plasma membrane by several routes. Describe three distinct membrane-transport processes.
Zadanie 6
Water affects both plant physiology and the habitats of organisms. (a) Outline benefits to organisms arising from cohesion of water molecules. (b) Outline how environmental conditions influence transpiration. (c) Explain osmosis and its effects on plant cells.…
Zadanie 1a
Outline the conditions required for osmosis.
Zadanie 1b
A model dataset relates the osmolarity of fluid surrounding mammalian sperm to the fraction of moving sperm. (i) State the relationship shown. (ii) Blood plasma has a lower osmolarity than seminal fluid in the model. Explain the expected direction of water…
- Materiał graficzny
Zadanie 3
A freshwater protist is placed in distilled water. Short arrows show water movement and longer horizontal arrows show the sequence of stages. The protist is moved to a solution that is still hypotonic to its cytoplasm but less dilute than distilled water. What…
- Materiał graficzny