This question is about the movement of substances across cell membranes in plants.
Explain what happens to a plant cell if it is placed in a highly concentrated (hypertonic) sodium chloride solution.
Rising sea levels can lead to saltwater intrusion, increasing the salinity of coastal soils.
Design an investigation to find out if the salinity of irrigation water affects the growth of wheat seedlings. Your answer should include experimental details and be written in full sentences.
23 exam-style questions on Edexcel IGCSE Biology Movement of substances into and out of cells. Each one has a worked solution and a mark scheme showing where the marks go.