Question 3
FThe figure shows a root hair cell from a plant root. Three structures are labelled A, B and C.
Figure: A root hair cell from a plant root, surrounded by soil water
a.[3]
Name structures A, B and C.
b.[2]
Explain how the shape of the root hair cell increases the rate at which mineral ions are absorbed.
c.[2]
Explain why the root hair cell contains many of structure C.
d.[2]
A field floods, so the air spaces in the soil fill with water.
Suggest why the plant then absorbs fewer mineral ions.
1.3 Transport in cells Questions
58 exam-style questions on AQA GCSE Biology 1.3 Transport in cells, covering 1.3.1 Diffusion, 1.3.2 Osmosis, and 1.3.3 Active transport. Each one has a worked solution and a mark scheme showing where the marks go.