(a)[4]
Describe the routes by which water moves from the soil to the cortex cells shown in Fig. 4.1.
(b)[1]
The cytoplasm of cell X contains a greater density of mitochondria than the cytoplasm of a cortex cell. Suggest why this is so.
Biology 9700 · AS & A Level · Transport mechanisms
Transport mechanisms — practice question
Fig. 4.1 shows a diagram of a cross-section through part of a young root.