A root hair cell takes in nitrate ions from soil in which the nitrate concentration is lower than inside the cell. Which statement describes how the ions are taken in?
By osmosis, and it does not require energy from respiration
By diffusion, and it does not require energy from respiration
By active transport, and it requires energy from respiration
By active transport, and it does not require energy from respiration
38 exam-style questions on AQA GCSE Biology 2.3 Plant tissues, organs and systems, covering 2.3.1 Plant tissues and 2.3.2 Plant organ system. Each one has a worked solution and a mark scheme showing where the marks go.