Which row in the table is the correct description for the process of translocation in plants?
| Main cell type involved in transport | Key organic substance transported | Mechanism driving movement | |
|---|---|---|---|
| A | Companion cells | Sucrose | Hydrostatic pressure gradient |
| B | Sieve tube elements | Glucose | Transpiration pull |
| C | Sieve tube elements | Sucrose | Hydrostatic pressure gradient |
| D | Companion cells | Glucose | Cohesion-tension |
Row A\text{Row A}Row A
Row B\text{Row B}Row B
Row C\text{Row C}Row C
Row D\text{Row D}Row D
82 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.