A scientist removes a small piece of tissue from inside an unopened side bud of a plant. The tissue is placed on sterile growth medium.
| Time on growth medium | Estimated total number of cells | Cell types observed |
|---|---|---|
| 0 days | 120 | Cells with no specialised features |
| 42 days | 15 000 | Xylem vessels, phloem sieve tubes, palisade cells and root hair cells |
Name the tissue removed from the bud. Explain how the results support your answer.
194 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.